
// Make newform 6003.2.a.o in Magma, downloaded from the LMFDB on 19 April 2024.
// To make the character of type GrpDrchElt, type "MakeCharacter_6003_a();"
// To make the coeffs of the qexp of the newform in the Hecke field type "qexpCoeffs();"
// To make the newform (type ModFrm), type "MakeNewformModFrm_6003_2_a_o();".
// This may take a long time!  To see verbose output, uncomment the SetVerbose lines below.
// The precision argument determines an initial guess on how many Fourier coefficients to use.
// This guess is increased enough to uniquely determine the newform.
// To make the Hecke irreducible modular symbols subspace (type ModSym)
// containing the newform, type "MakeNewformModSym_6003_2_a_o();".
// This may take a long time!  To see verbose output, uncomment the SetVerbose line below.
// The default sign is -1.  You can change this with the optional parameter "sign".
function ConvertToHeckeField(input: pass_field := false, Kf := [])
    if not pass_field then
        poly := [-40, -88, 219, 352, -547, -402, 641, 97, -298, 24, 58, -11, -4, 1];
        Kf := NumberField(Polynomial([elt : elt in poly]));
        AssignNames(~Kf, ["nu"]);
    end if;
    Rf_num := [[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [-3, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [4, 4, -6, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0], [-363, 153, 1894, -1566, -2433, 2882, 604, -1530, 147, 313, -67, -22, 6], [-28, -613, -236, 3232, 233, -4758, 818, 2387, -621, -482, 145, 34, -11], [-104, -765, -198, 3365, 233, -4777, 818, 2387, -621, -482, 145, 34, -11], [-47, -860, -217, 3384, 233, -4777, 818, 2387, -621, -482, 145, 34, -11], [3, -942, -865, 3869, 1379, -5121, 44, 2447, -382, -479, 110, 33, -9], [516, 1338, -2024, -4377, 3203, 4512, -2464, -1923, 910, 357, -156, -24, 10], [-1326, -2985, 4344, 10979, -6078, -13307, 5613, 6176, -2422, -1196, 457, 82, -31], [-449, -1628, 1313, 6887, -2400, -8947, 3092, 4272, -1512, -839, 301, 58, -21], [-1136, -3175, 3736, 11397, -5774, -13478, 5575, 6195, -2422, -1196, 457, 82, -31]];
    Rf_basisdens := [1, 1, 1, 1, 19, 19, 19, 19, 19, 19, 38, 19, 19];
    Rf_basisnums := ChangeUniverse([[z : z in elt] : elt in Rf_num], Kf);
    Rfbasis := [Rf_basisnums[i]/Rf_basisdens[i] : i in [1..Degree(Kf)]];
    inp_vec := Vector(Rfbasis)*ChangeRing(Transpose(Matrix([[elt : elt in row] : row in input])),Kf);
    return Eltseq(inp_vec);
end function;


// To make the character of type GrpDrchElt, type "MakeCharacter_6003_a();"
function MakeCharacter_6003_a()
    N := 6003;
    order := 1;
    char_gens := [668, 3133, 4555];
    v := [1, 1, 1];
    // chi(gens[i]) = zeta^v[i]
    assert UnitGenerators(DirichletGroup(N)) eq char_gens;
    F := CyclotomicField(order);
    chi := DirichletCharacterFromValuesOnUnitGenerators(DirichletGroup(N,F),[F|F.1^e:e in v]);
    return MinimalBaseRingCharacter(chi);
end function;

function MakeCharacter_6003_a_Hecke(Kf)
    return MakeCharacter_6003_a();
end function;


function ExtendMultiplicatively(weight, aps, character)
    prec := NextPrime(NthPrime(#aps)) - 1; // we will able to figure out a_0 ... a_prec
    primes := PrimesUpTo(prec);
    prime_powers := primes;
    assert #primes eq #aps;
    log_prec := Floor(Log(prec)/Log(2)); // prec < 2^(log_prec+1)
    F := Universe(aps);
    FXY<X, Y> := PolynomialRing(F, 2);
    // 1/(1 - a_p T + p^(weight - 1) * char(p) T^2) = 1 + a_p T + a_{p^2} T^2 + ...
    R<T> := PowerSeriesRing(FXY : Precision := log_prec + 1);
    recursion := Coefficients(1/(1 - X*T + Y*T^2));
    coeffs := [F!0: i in [1..(prec+1)]];
    coeffs[1] := 1; //a_1
    for i := 1 to #primes do
        p := primes[i];
        coeffs[p] := aps[i];
        b := p^(weight - 1) * F!character(p);
        r := 2;
        p_power := p * p;
        //deals with powers of p
        while p_power le prec do
            Append(~prime_powers, p_power);
            coeffs[p_power] := Evaluate(recursion[r + 1], [aps[i], b]);
            p_power *:= p;
            r +:= 1;
        end while;    
    end for;
    Sort(~prime_powers);
    for pp in prime_powers do
        for k := 1 to Floor(prec/pp) do
            if GCD(k, pp) eq 1 then
                coeffs[pp*k] := coeffs[pp]*coeffs[k];
            end if;
        end for;
    end for;
    return coeffs;
end function;


function qexpCoeffs()
    // To make the coeffs of the qexp of the newform in the Hecke field type "qexpCoeffs();"
    weight := 2;
    raw_aps := [[0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [-1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0], [-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0], [1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0], [-2, 1, 0, 0, 1, 0, -1, 0, 0, 0, -1, 1, 0], [0, -1, 0, 0, 0, 0, 2, -1, 0, 0, -1, -1, 0], [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [-1, 2, 0, 1, 0, 0, -2, 2, 0, 0, 0, 1, 0], [1, 0, 0, -1, 0, 1, 0, 0, -1, -1, -1, 0, 2], [-1, 0, 1, 0, -1, 0, 0, 0, 1, -1, 0, 0, -2], [0, 0, 0, 0, -1, -1, -1, 1, -1, 0, 1, 1, 1], [-2, 3, -1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0], [-4, 3, -1, 0, 1, 0, -2, 1, -1, 0, 0, 2, 0], [0, 1, -1, 1, 0, -4, 0, -1, -1, 2, -2, 0, 1], [2, -1, 0, 2, -1, -1, -1, 0, 0, 0, 2, -1, -2], [1, -1, -1, 1, 1, 0, -1, 1, -1, -2, 2, 1, -1], [-2, 3, 0, -1, 1, 3, 0, 1, -1, 1, 2, 0, 1], [2, -1, -1, 1, 0, -1, 2, 0, -2, 1, 0, 1, 0], [0, 2, 0, -4, 2, 0, -1, 0, 2, 0, 1, 0, 1], [-1, -2, 0, 1, -2, 2, 3, 0, -2, -1, 0, -1, -2], [-4, -1, -2, 1, -1, 0, 1, 0, -3, 0, 3, 0, -2], [4, 0, 1, 1, 1, 0, 0, -2, 1, 0, 0, 1, 0], [-3, 2, -2, 1, 1, -3, -3, -1, 0, 2, -4, 1, 1], [1, 2, -1, 1, 0, 0, 2, -1, 2, -2, 0, 1, -1], [2, -3, 2, 0, 0, 0, -1, -1, -1, -2, 2, 0, 1], [-1, 2, 1, 3, -1, -3, -1, 0, -1, 1, -2, 0, -1], [-4, 1, 0, -1, -1, 0, 2, 2, -1, 2, 2, 0, 2], [2, -2, 1, 0, -1, 2, 2, -2, 1, 1, -2, -1, 1], [0, -1, 0, -4, -2, 3, 0, -1, -2, -4, 2, 1, 2], [1, -2, 0, -2, -2, -1, 0, -2, 0, -1, 1, 1, 1], [-3, 0, 0, -3, -1, 2, 0, -1, 1, 0, 0, 0, 3], [-5, -1, -2, -3, -2, 0, 2, -1, -1, 1, 0, -3, 0], [-2, -4, -1, -1, -3, -2, -1, -1, 0, -1, 0, 0, -1], [4, -2, 2, 0, 0, 1, -1, 0, -1, 0, -1, 1, 1], [-4, -1, -3, 3, 1, -3, 0, -1, -1, 0, -4, 0, 1], [2, -3, 0, -2, -2, 5, 0, 0, 1, -2, 4, 0, 0], [0, -3, 1, 0, 0, 1, 1, 1, -3, 0, -2, 0, 0], [-2, 2, -3, 0, 1, -1, 0, 1, -1, 1, -2, 3, 1], [0, -3, -1, -1, -2, 0, 3, -2, -1, 0, -4, -4, 2], [3, 1, 1, 1, 1, 2, 5, -1, 1, 1, 1, -1, 2], [1, 2, 2, 0, 1, -2, -1, 1, 0, -1, 4, 1, 1], [-6, 0, 4, 1, 2, -4, -2, -1, 0, 0, -4, -2, 0], [-5, 7, 0, -2, 0, 1, -3, 1, -2, 0, -2, 4, 1], [-2, 1, 1, 1, 2, 0, -1, -2, 0, 1, 0, -1, 1], [6, 2, 0, -4, 2, 1, -4, -1, 1, -4, 2, 1, -2], [-2, -2, -1, 5, 1, 0, 5, -2, 1, 0, -4, -1, -5], [2, 6, -1, 3, 1, -1, -2, 0, 5, 4, 1, 1, -3], [-2, 0, -1, 0, 1, 2, 2, -1, -1, -1, -4, 3, -2], [2, 0, 0, -3, -2, 1, -1, 1, 2, -3, 6, -2, 1], [2, 1, 1, 6, 0, -4, -2, 2, 1, 3, -4, 0, 1], [-3, 0, 2, 1, 3, -3, -2, 1, 0, -1, -5, 1, -2], [-11, 1, -1, 1, -1, 1, 4, -2, -4, 3, -2, -2, 0], [-3, 3, 1, -2, 1, -1, -2, 3, -1, 2, 4, 1, -1], [-8, -5, 1, -2, -1, 0, 3, -1, -2, 0, 0, -5, -3], [-7, 10, -5, 1, 2, 1, -1, 3, -1, 1, 2, 4, 2], [4, 0, 1, 2, 0, 2, 2, 2, 1, -1, 4, -1, 0], [0, -7, 4, -4, -3, 2, 1, -2, 0, -4, 4, -1, 4], [-1, -1, 2, 1, -2, 1, 5, 1, -2, -1, -2, 0, -1], [-12, 2, 4, 1, 2, 2, -1, 2, 0, 0, 1, 0, 0], [-4, -6, -1, -5, -1, 2, -1, -2, 3, -3, 2, -1, 2], [0, 2, 6, 2, 4, 2, 0, 2, 7, 1, 2, -1, 2], [-4, 4, -2, 4, -3, 1, -2, 1, -3, 1, -4, 1, -1], [-6, 1, -1, -5, 0, 4, 0, 0, 1, -6, 8, 0, -2], [-2, 2, 2, 5, 2, -4, -4, 2, 0, 3, -2, -4, -3], [2, -1, -1, 3, 1, 2, -1, -1, -2, 2, -5, 1, 0], [8, 0, 1, -4, 1, 3, -2, -1, 0, -2, 2, -2, 2], [-1, -3, 7, 1, -2, 2, 4, -1, 0, 0, -2, -4, -2], [-4, 0, -3, -4, -3, -3, 2, -2, -2, 1, 2, -4, 3], [4, 1, 0, 2, -1, -3, -1, 2, -2, 0, -5, 3, -2], [6, -1, 0, -5, -1, -1, -2, -2, -2, -4, 0, 3, 1], [2, 3, -4, -7, 1, -1, -2, 2, 3, -3, 4, 0, 2], [5, 1, -1, -2, 5, -1, -4, 3, 4, -2, 5, 2, 0], [-5, -6, 0, -1, -1, -4, -1, -1, -2, 3, -8, -1, 3], [1, -3, 3, 3, -2, 2, 1, -2, 0, -2, 1, 0, 1], [3, 1, -3, -4, -2, 0, 0, -4, 4, 1, 6, 2, -4], [2, -1, 4, -3, 0, 0, -4, 1, 1, 0, -2, -2, 0], [-3, 1, 4, -3, -2, 3, 1, 3, -4, -2, -4, 0, 1], [-2, 0, 0, -1, 2, -2, 3, 0, 3, 1, 2, -1, -3], [8, 0, -2, -2, -1, 6, -2, 3, 3, -5, 7, -1, -6], [2, -1, 5, 4, 0, 1, -4, 4, -1, 0, -6, 2, 4], [1, 1, 4, -1, 1, -4, -8, 2, 0, 1, -6, 0, 0], [-7, 0, -2, 1, 1, -4, 3, 0, 4, 5, 0, -1, -6], [-3, -8, -1, 8, 2, -3, 3, -3, 3, 3, 0, -2, -7], [5, -4, 0, -4, 0, 3, -1, 4, -2, 1, 0, 1, 6], [-4, 6, -2, -4, 1, 3, -7, 1, -3, -4, 4, 3, -1], [-1, -3, 0, 1, 0, -1, 1, -1, 1, 3, -6, -3, 5], [-8, 0, 4, 0, -1, 6, -2, 2, -4, 0, -2, 2, 1], [-4, 2, -1, -3, 1, -7, -5, 0, -1, 0, -3, 3, 1], [-2, 4, 1, 0, 4, 6, -1, -1, 4, -1, 0, 2, -1], [-6, -5, -1, 0, -5, 5, 8, 1, -4, -2, -2, -3, 2], [7, -3, 1, 8, -1, -2, -3, 3, -1, -1, 0, 1, -5], [-2, -5, -3, 3, 0, -4, 3, -5, 0, -1, -2, -1, 0], [-2, -7, -4, 5, 2, -5, -2, 1, -1, 3, -1, 0, -4], [-7, 0, 5, 2, -1, 1, 1, 1, 2, -2, 2, -1, -6], [-2, -6, -2, 6, 0, -5, -2, 2, 1, 1, -4, 1, -2], [-6, 3, -3, -2, 2, -2, -7, 0, -1, -4, 2, 6, 0], [-1, 6, 0, -2, 7, -1, -2, 3, 3, 3, 0, 0, 5], [-2, 3, 0, 6, 0, -3, -3, -2, -2, 1, -8, -3, 1], [1, -5, -4, -5, -7, 7, 6, -4, -2, -5, 8, 0, 2], [-9, 0, 4, -1, -1, 2, 5, 1, -1, -4, 7, 0, -6], [-2, 10, -3, -1, 2, 0, -4, -3, -4, 0, -2, 2, 4], [-2, -11, 0, -2, -5, 1, 9, -2, -6, 1, -2, -7, 0], [-2, 1, -4, -4, 3, -3, -3, 0, 3, 0, 2, -2, -5], [-2, -1, -1, -4, -3, 3, 1, 0, 6, -2, 4, -3, -8], [-5, 1, -1, 2, 2, -5, -6, -3, -3, 1, -4, -1, -1], [0, -2, 5, 1, -6, 0, -1, 5, -4, -1, -2, 2, 0], [-5, -8, -7, 2, -7, -4, 5, -4, -5, 3, 0, -2, 0], [-16, 0, 0, -2, -4, 1, 3, 0, -1, 1, 0, 1, 0], [-1, -3, -3, -3, -1, 5, 2, -1, -7, -3, 6, 1, -5], [2, -4, -4, 6, -3, -4, 5, -3, -5, 1, -8, 1, 3], [-4, -5, 6, 0, -2, 5, 2, 3, 2, -2, -1, -3, 5], [-2, -4, 3, 2, 0, 2, 2, -1, 3, -3, 2, -1, -2], [-9, 5, 0, 3, 2, -5, 0, -3, 0, 7, -3, -2, 3], [-4, -10, 1, -5, -3, -5, 0, -4, -4, -1, -6, -2, 2], [6, 3, -5, 2, 1, 0, -5, -2, 7, 0, 0, 4, -4], [-5, -4, 6, -4, 2, 2, 1, 2, 4, 0, 8, -3, -2], [5, -7, -3, 2, -4, 4, 10, -4, 2, -1, 1, -4, 0], [-2, 2, -1, 3, 4, -6, 1, 3, -2, 4, -10, 0, 4], [0, -8, 5, 0, -4, 8, 5, 0, -1, -4, 8, -3, -1], [-7, 7, -2, 4, 5, -2, 0, 4, 1, 0, 0, 1, -3], [0, -2, -6, 0, 2, -4, -5, -6, -1, 3, -4, 3, -1], [-19, 2, -2, -3, 6, -9, -11, 4, 1, 3, 0, 6, -2], [-8, 1, -4, -6, -4, 4, 3, -3, -4, -5, 0, 3, 0], [3, -7, -3, -5, 2, 8, 1, 0, -1, -6, 6, 3, -5], [-7, 2, -4, -3, -3, 5, -1, 4, 1, 0, 12, 4, -7], [3, -4, -2, -6, -1, 2, -2, 3, 0, -2, 8, -1, -1], [-3, 3, -3, 1, -2, 1, -1, 4, -2, -3, -2, 0, -3], [-4, -9, 7, -9, 0, 3, -6, 0, -4, -8, 0, -1, 7], [8, 1, -4, 6, -3, -5, -1, 2, -7, 5, -1, 0, -2], [5, -7, 4, 1, 1, 7, 4, -4, 0, 1, 3, -2, 4], [2, -9, 1, -1, -1, 3, 9, -1, 2, 4, -1, -3, 4], [3, 1, -9, 0, -1, -1, 4, -2, -1, 4, -2, 1, 3], [2, -3, 4, 1, 0, -1, -5, 3, 0, 1, 11, -3, -1], [-6, -2, 4, -2, 2, 5, -1, 4, 5, 2, 6, 1, 2], [-6, -2, -2, 4, -4, 1, 5, -2, 0, -6, 0, 0, -6], [-10, -8, 0, 0, -2, 0, -3, 0, 2, 1, 8, 2, -4], [-7, 0, 7, 1, -6, 5, 6, 5, -5, 5, -2, -8, 3], [-8, 8, -3, 2, 3, -4, 3, -2, 6, 1, -8, 2, 6], [-1, -5, -5, -2, 2, 4, 3, 1, -10, 0, 2, 0, 0], [-1, -5, -6, -6, -6, 7, 1, -1, -5, -1, 18, 3, -1], [-2, -9, 1, -3, -1, -3, 2, -3, -1, 0, 1, -2, -14], [7, -16, 0, -2, -4, 5, 11, -6, 9, -6, 6, -8, -6], [2, 4, 11, -1, 1, 0, -5, 4, 8, 2, 0, 2, 2], [7, 2, -5, 5, 1, -8, -3, 2, -2, 5, -8, 5, -2], [-5, -2, 0, 1, -4, 1, 12, -8, -5, -2, -4, -4, -3], [1, 1, 8, 4, 0, 3, 3, 1, 6, 0, -4, -4, 7], [-6, -11, 8, 0, 1, -1, -4, 0, 0, 2, -8, 3, 3], [-6, -2, -2, 4, 0, -1, 6, -7, -5, 6, -6, 1, 3], [9, -1, 7, 7, -4, 6, 1, 4, -1, 1, 9, -1, -4], [0, -7, -2, 2, -4, -7, -4, 0, -3, 8, -8, -2, 3], [9, 2, -4, 0, -2, 4, 3, -2, -1, -9, 4, 0, -6], [-2, -4, -10, -2, -8, 4, 6, -2, 0, 0, 5, 2, 5], [-6, 0, -3, -1, -4, 0, -6, 1, 1, -6, 1, 1, -1], [5, 1, -1, -2, 8, 1, 1, 0, 6, 0, 4, 0, 2], [10, 4, 1, 4, 0, -2, -3, 4, 4, 5, -4, -2, 4], [4, -9, 3, -4, 1, 2, 1, -3, 2, -8, -4, -1, 12], [-6, -2, -2, -13, -3, 8, 6, -7, -2, -5, 4, -4, 3], [6, -2, -2, 3, -1, 3, 11, -5, -2, -1, -10, 2, 2], [10, -7, -1, -2, 3, -2, -2, -3, -1, -1, 0, 6, 5], [-4, -5, 2, 4, -3, 6, 5, 2, 5, 0, 4, -6, -7], [8, -12, 3, 4, -3, 1, 4, -2, -4, -1, -6, -4, 1], [-3, -4, -1, -3, -5, 6, 2, -2, -7, -6, 14, 2, -5], [-3, 12, 1, -6, -2, 1, 1, 1, 0, -2, -1, 1, 4], [0, 9, -13, 1, 2, -1, 1, -4, -2, 2, 2, -1, -2], [-4, 10, -2, -6, 2, -1, -6, 4, 3, 1, 8, 1, -5], [0, 7, -9, -6, -2, 7, -1, 2, 2, 0, 14, 3, 2], [-12, 0, 5, 1, -4, 2, -2, 3, 4, 2, -8, 2, 11], [12, 5, 8, 1, 3, -2, -5, 2, -4, 0, -2, 5, 0], [-11, 5, -2, 2, 2, -8, -5, 0, -2, 6, -18, 0, 10], [7, -9, -3, -6, 2, -5, 1, -4, 1, 3, 2, -7, 8], [15, -1, -1, -2, 5, -6, -6, -3, 1, -5, 3, 3, -14], [0, -6, -4, -11, -6, 10, 3, -6, -3, -8, 14, 1, -4], [0, 4, -4, -2, 5, 1, -2, -1, -1, -3, 2, 3, -4], [-8, 3, 12, 2, 1, 3, 0, 5, -3, -1, 0, 0, 2], [2, 2, 5, 6, -1, -1, 0, 0, 7, -6, -2, -1, -6], [3, 9, -2, 0, 1, 3, -3, 8, 12, -1, 10, 0, -3], [2, 2, -1, 4, -4, 0, 1, 9, -3, -1, 10, 1, 1], [2, -5, 7, -8, -1, 8, 8, -5, 1, -1, -8, -8, 6], [2, 5, -1, 8, 4, -2, 1, 4, -3, 0, -1, -2, -10], [-8, 10, 9, -2, -2, 3, -1, 3, 1, 0, -6, 3, 3], [11, -16, 1, -4, 1, 2, 2, -3, 5, 0, 12, -6, -1], [2, 12, -1, 3, -4, 2, 0, 3, -1, -1, 12, -1, -7], [-10, 4, 0, 2, 3, 0, 6, -1, 13, 2, 0, -5, -1], [4, 2, -3, -4, -4, 2, 7, -1, 0, 1, -2, -4, 6], [20, 4, -1, 3, -6, 0, 2, 1, 6, 5, 10, -2, -7], [-7, 8, -2, 5, -3, 9, -4, 9, -3, -2, 8, 2, -3], [2, 2, -6, -4, 3, -3, 2, -5, -2, 2, -10, 2, 9], [-16, 6, 0, 8, 7, -7, -1, 6, 4, 5, -2, 2, -11], [-6, -8, 7, 0, -3, 2, 9, -2, 5, -3, 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-3, 5, 4, 12, -13, 2, -9, -4], [-19, 3, -11, -12, -4, 9, 8, 0, 5, 3, 7, -5, 3], [3, 4, 3, 2, -5, -7, -6, 6, 0, -2, -6, 7, 4], [-15, 13, 15, 8, 5, -1, -6, 11, 4, 1, -2, 4, -11], [8, 10, 0, 7, 1, -9, -9, -2, -3, 3, 4, 7, -7], [-7, -12, 5, 3, -4, -5, 2, -1, -11, -1, 4, -6, 0], [-7, 1, 5, -6, 10, 8, -1, 2, 2, 4, 4, -6, 22], [15, -3, 4, -1, 0, 1, -18, 9, -9, -1, 12, 5, 2], [-12, -20, -1, 0, -8, 2, 7, 5, 0, 1, 18, -4, -2], [14, -2, 13, 7, 6, 1, -7, 7, 8, 7, -10, 0, -2], [8, 3, 13, 4, 10, -2, -2, 2, 3, -3, 6, -2, -5], [-1, -9, 8, 3, 0, -4, 12, -3, -3, 13, -10, -5, 3], [-10, 0, 9, -5, -10, -5, 0, 5, -5, 2, 14, -1, 0], [2, 22, -5, -19, 10, -4, -8, -7, 5, 6, -5, 9, 18], [25, -24, -1, -4, -8, 0, 2, -9, 2, -1, -10, -5, 9], [-2, -9, -1, 1, 2, 1, 14, -13, -7, 3, -8, -2, -11], [24, 2, -1, 4, 6, 1, -5, 10, -8, 7, -10, 8, 8], [-26, -4, 8, -2, 0, -4, -2, 2, -5, -5, -7, 9, 0], [-3, 2, -12, -6, -4, 12, -4, 12, 2, -10, 18, 5, -8], [5, 22, 2, -4, 5, -16, -19, -2, 1, 3, -6, 6, -5], [-8, 10, 15, 14, 13, -18, -11, 2, -3, 3, -14, 1, -6], [-4, -5, 6, -3, 0, -6, -15, 1, 12, 4, -10, -5, 7], [-1, 10, -13, -7, 1, -5, 0, -6, 11, 4, 5, 4, -6], [7, -16, -2, 2, -6, -6, 3, -8, 3, -4, 8, -6, -1], [-13, 5, -4, -10, 5, 10, 3, 7, 11, -8, 26, 5, -4], [13, -4, -8, 6, 9, -4, -8, 5, 6, 4, 3, 5, -5], [7, 11, -4, 6, 12, -5, -6, -3, 3, -4, -10, 1, 2], [7, 3, 4, 0, 8, -5, -11, -5, 0, -5, 0, -2, -3], [10, -13, -2, 4, -6, 7, 7, -3, -6, -4, -2, 5, -4], [2, 0, 5, 4, 10, -3, -3, 1, -5, 10, -4, -5, 23], [6, -10, 5, -6, -2, -2, 2, 2, -9, 1, -4, -5, -9], [-17, 1, 6, 10, 4, 8, -8, 7, -5, 0, 4, 1, 3], [-15, -9, -9, -8, -11, 5, 4, -7, 1, -8, 2, -3, 8], [14, 6, -2, -5, -9, 7, 1, 1, -12, 4, 13, 4, -5], [-9, -2, 3, -21, -9, 12, -3, 2, -2, -7, 17, -9, 1], [-19, 3, -1, -11, -9, 7, -10, 5, -6, -5, 1, 0, 18], [-8, 6, -12, 8, -2, -13, 5, -6, 1, -4, -18, 3, -7], [-9, -20, -8, -1, -4, 1, 3, -6, -13, 2, 2, 4, -5], [-24, 12, -10, 0, -6, 5, -7, 8, -13, -9, -6, 13, -2], [13, -15, 1, -8, -2, 8, 2, -2, 9, 5, 1, 1, 8], [-15, -1, 8, 10, 4, 9, 4, 3, 8, 2, 12, -2, -9], [16, -5, 8, -14, -3, 10, 3, -4, 2, -5, -4, -3, 12], [-5, -9, -5, -2, -1, 4, 2, -11, -4, 0, 3, 8, -11], [-10, 1, -12, -5, 3, -7, 0, -10, -2, 3, -4, -7, 2], [8, 10, 2, 8, -3, 2, 4, -3, 15, -4, 4, 5, -2], [-10, -8, 12, 1, 12, -17, -16, 6, 5, 2, 2, 7, 6], [9, -8, -5, -4, 1, -2, 6, -4, 4, -3, -14, 3, 1], [11, -2, -3, -15, 2, -11, 4, -13, -2, 2, -13, 3, 10], [-9, -6, -1, 3, 9, -7, 12, -8, 4, 2, -8, -9, -7], [-29, 5, -2, 0, -3, -4, -2, 6, -6, 0, -6, 0, 21], [-11, 27, 2, 16, -5, 3, -7, 17, -5, 0, 4, 7, -5], [-9, 13, 1, -11, 4, 12, 1, -4, 7, -2, -12, 3, 16], [6, 9, -12, 4, 8, 0, 8, 5, -2, -3, 10, 3, -11], [-2, 9, 7, 1, 1, 11, -4, 5, -3, -12, -3, -2, 18], [-2, 7, 8, -9, 4, 2, -8, -2, 13, -5, 10, -6, 0], [-20, -10, 17, 6, -10, 1, 14, 0, -11, 2, -4, -7, 3], [-26, -2, 0, 2, -7, -4, -5, -5, -5, 8, -14, -5, -5], [2, -15, 10, 1, -4, 12, 9, 5, 10, -10, 26, -7, -5], [10, 1, -1, 0, -2, 1, -4, -2, -24, -3, -4, 7, 8], [6, 3, -8, 5, -3, -9, 6, 4, 0, 11, -15, -1, -10], [-19, 12, -5, -4, 5, 6, 4, 2, 1, -4, 18, 14, -9], [10, 2, 18, -4, 5, -1, -6, -1, 13, 1, 2, -1, 9], [8, -2, 8, -10, 10, -1, -6, -1, 9, 1, 0, 7, 16], [0, -18, -2, 7, -6, -7, 4, 0, 15, -8, 9, -7, -1], [21, 11, 0, 6, 5, 8, 3, 10, 2, 7, 0, 6, -13], [-2, 7, 11, -2, 8, 2, -3, 10, -6, 16, -2, 1, 16], [23, -5, -11, 3, -4, 11, 12, -2, -1, 1, 7, -7, 4], [-20, -5, 3, 2, -1, -5, 9, -13, 4, 0, -10, -5, -7], [-22, 19, -18, -2, 8, -8, -10, 1, -1, 0, 6, 2, -9], [-9, -11, 0, 0, -1, 7, 1, 7, -6, -12, -2, 2, 0], [-20, 11, -10, 5, 6, -15, 0, -1, 9, 6, -24, 0, 6], [-2, -4, 12, 0, -3, 5, 3, 1, 17, 2, -4, -11, 1], [-6, 7, -1, 10, -5, -18, -7, 13, 1, 9, 2, 2, -11], [-2, 7, 3, 1, 8, -1, -2, 4, 6, 5, 10, -1, -1], [20, 1, 13, -4, 8, -7, -11, -8, 8, -5, -6, -3, -2]];
    aps := ConvertToHeckeField(raw_aps);
    chi := MakeCharacter_6003_a_Hecke(Universe(aps));
    return ExtendMultiplicatively(weight, aps, chi);
end function;


// To make the newform (type ModFrm), type "MakeNewformModFrm_6003_2_a_o();".
// This may take a long time!  To see verbose output, uncomment the SetVerbose lines below.
// The precision argument determines an initial guess on how many Fourier coefficients to use.
// This guess is increased enough to uniquely determine the newform.
function MakeNewformModFrm_6003_2_a_o(:prec:=13)
    chi := MakeCharacter_6003_a();
    f_vec := qexpCoeffs();
    Kf := Universe(f_vec);
    // SetVerbose("ModularForms", true);
    // SetVerbose("ModularSymbols", true);
    S := CuspidalSubspace(ModularForms(chi, 2));
    S := BaseChange(S, Kf);
    maxprec := NextPrime(2999) - 1;
    while true do
        trunc_vec := Vector(Kf, [0] cat [f_vec[i]: i in [1..prec]]);
        B := Basis(S, prec + 1);
        S_basismat := Matrix([AbsEltseq(g): g in B]);
        if Rank(S_basismat) eq Min(NumberOfRows(S_basismat), NumberOfColumns(S_basismat)) then
            S_basismat := ChangeRing(S_basismat,Kf);
            f_lincom := Solution(S_basismat,trunc_vec);
            f := &+[f_lincom[i]*Basis(S)[i] : i in [1..#Basis(S)]];
            return f;
        end if;
        error if prec eq maxprec, "Unable to distinguish newform within newspace";
        prec := Min(Ceiling(1.25 * prec), maxprec);
    end while;
end function;


// To make the Hecke irreducible modular symbols subspace (type ModSym)
// containing the newform, type "MakeNewformModSym_6003_2_a_o();".
// This may take a long time!  To see verbose output, uncomment the SetVerbose line below.
// The default sign is -1.  You can change this with the optional parameter "sign".
function MakeNewformModSym_6003_2_a_o( : sign := -1)
    R<x> := PolynomialRing(Rationals());
    chi := MakeCharacter_6003_a();
    // SetVerbose("ModularSymbols", true);
    Snew := NewSubspace(CuspidalSubspace(ModularSymbols(chi,2,sign)));
    Vf := Kernel([<2,R![40, -88, -219, 352, 547, -402, -641, 97, 298, 24, -58, -11, 4, 1]>,<5,R![-64, -736, -1214, 7871, 27980, 31627, 12522, -2653, -3861, -1022, 72, 86, 16, 1]>],Snew);
    return Vf;
end function;