
// Make newform 4096.2.a.s in Magma, downloaded from the LMFDB on 19 April 2024.
// To make the character of type GrpDrchElt, type "MakeCharacter_4096_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_4096_2_a_s();".
// 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_4096_2_a_s();".
// 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 := [1, 0, -16, 0, 20, 0, -8, 0, 1];
        Kf := NumberField(Polynomial([elt : elt in poly]));
        AssignNames(~Kf, ["nu"]);
    end if;
    Rf_num := [[1, 0, 0, 0, 0, 0, 0, 0], [-2, 0, 1, 0, 0, 0, 0, 0], [0, -3, 0, 1, 0, 0, 0, 0], [2, 0, -4, 0, 1, 0, 0, 0], [0, 7, 0, -6, 0, 1, 0, 0], [0, 9, 0, -6, 0, 1, 0, 0], [0, 0, 8, 0, -6, 0, 1, 0], [0, -8, 0, 14, 0, -7, 0, 1]];
    Rf_basisdens := [1, 1, 1, 1, 1, 1, 1, 1];
    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_4096_a();"
function MakeCharacter_4096_a()
    N := 4096;
    order := 1;
    char_gens := [4095, 5];
    v := [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_4096_a_Hecke(Kf)
    return MakeCharacter_4096_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, 0, 0, 0, 0, 0, 0, 0], [1, 1, 0, 0, 0, 0, 0, 0], [0, 0, -1, 0, -1, 0, 0, 0], [0, 0, -1, 0, 0, -1, 0, 1], [1, 1, 0, 0, 0, 0, -2, 0], [0, 0, 1, 0, 0, 1, 0, 2], [1, 3, 0, -1, 0, 0, 1, 0], [0, 2, 0, -1, 0, 0, 3, 0], [0, 0, 1, 0, 0, 3, 0, 1], [0, 0, -2, 0, -2, -3, 0, 1], [0, 0, -4, 0, -4, 0, 0, 2], [0, 0, 3, 0, 2, -1, 0, -2], [4, -1, 0, -2, 0, 0, -1, 0], [7, -3, 0, 0, 0, 0, -2, 0], [0, 0, 4, 0, -1, -1, 0, -2], [0, 0, -4, 0, -1, -2, 0, 3], [4, -6, 0, -1, 0, 0, -3, 0], [0, 0, 2, 0, -1, 4, 0, 3], [3, 5, 0, -2, 0, 0, 2, 0], [0, 0, 1, 0, -2, 1, 0, 5], [-1, 0, 0, -3, 0, 0, -4, 0], [0, 0, 2, 0, -1, -1, 0, -2], [6, -2, 0, -3, 0, 0, 1, 0], [-1, 2, 0, -3, 0, 0, 2, 0], [1, 5, 0, 3, 0, 0, 5, 0], [0, 0, 5, 0, 0, 5, 0, 4], [0, 0, -3, 0, -2, -1, 0, 5], [1, -3, 0, -2, 0, 0, 0, 0], [0, 0, 1, 0, 1, 0, 0, -4], [6, 0, 0, 0, 0, 0, 2, 0], [0, 0, 2, 0, -2, 6, 0, 4], [11, -1, 0, 2, 0, 0, 4, 0], [-4, -5, 0, 0, 0, 0, 5, 0], [7, -1, 0, 2, 0, 0, 2, 0], [0, 0, 4, 0, -2, -1, 0, 5], [0, 0, 3, 0, 0, -1, 0, -9], [0, 0, 8, 0, 5, 4, 0, 3], [7, 1, 0, -8, 0, 0, 2, 0], [0, 0, 13, 0, 0, 1, 0, 7], [0, 0, -7, 0, 0, 1, 0, 8], [6, 4, 0, -1, 0, 0, 5, 0], [0, 0, -2, 0, 2, 3, 0, -3], [0, 0, -4, 0, -2, 2, 0, 14], [1, 1, 0, 3, 0, 0, -7, 0], [0, 0, 1, 0, 1, -8, 0, 2], [0, 0, -1, 0, -2, -3, 0, 1], [0, 4, 0, 7, 0, 0, 3, 0], [0, 0, -2, 0, 8, 0, 0, 0], [3, 7, 0, -4, 0, 0, 0, 0], [0, 0, -13, 0, -3, -4, 0, 6], [3, 2, 0, 9, 0, 0, -6, 0], [0, 0, -10, 0, -1, -9, 0, -10], [-7, 3, 0, -5, 0, 0, 1, 0], [6, 2, 0, 9, 0, 0, 1, 0], [2, -10, 0, -2, 0, 0, -4, 0], [0, 0, 5, 0, 8, 3, 0, -3], [0, 0, 5, 0, 5, -8, 0, -2], [0, 0, 2, 0, 7, -5, 0, -4], [0, 0, 8, 0, -5, 6, 0, 13], [-13, 2, 0, -5, 0, 0, 12, 0], [0, -4, 0, 5, 0, 0, -5, 0], [0, 0, 3, 0, 5, 6, 0, 2], [-6, 2, 0, -1, 0, 0, 9, 0], [0, 0, -1, 0, 6, 3, 0, -7], [-6, -9, 0, -4, 0, 0, -1, 0], [0, 0, -6, 0, 6, 1, 0, 7], [-3, -5, 0, -12, 0, 0, -4, 0], [-12, -6, 0, -4, 0, 0, 10, 0], [8, 12, 0, 1, 0, 0, 9, 0], [0, 0, -8, 0, 0, -3, 0, -9], [0, -6, 0, -4, 0, 0, -4, 0], [0, 0, 9, 0, 4, 1, 0, 5], [0, 0, -10, 0, -5, -5, 0, 4], [0, 0, 2, 0, -9, -8, 0, -7], [0, -8, 0, -5, 0, 0, -5, 0], [0, 0, -2, 0, -2, -10, 0, -2], [0, 0, -15, 0, -8, -5, 0, 2], [0, 0, -5, 0, -3, -8, 0, 0], [1, 7, 0, 7, 0, 0, 1, 0], [0, -13, 0, -2, 0, 0, -13, 0], [-1, -9, 0, 0, 0, 0, -14, 0], [0, 0, 9, 0, 1, -2, 0, -20], [0, 0, -4, 0, -1, -9, 0, -12], [-5, -11, 0, 5, 0, 0, -5, 0], [0, 0, 5, 0, -8, -3, 0, 3], [-4, 2, 0, -1, 0, 0, 19, 0], [1, -3, 0, 7, 0, 0, 5, 0], [-10, 11, 0, 8, 0, 0, 7, 0], [0, 0, -7, 0, 5, 2, 0, -6], [0, 0, -8, 0, -15, 1, 0, 12], [-2, 4, 0, -7, 0, 0, 1, 0], [0, 0, -2, 0, -6, 2, 0, -4], [0, 0, 3, 0, 2, 7, 0, -7], [5, -5, 0, -2, 0, 0, 12, 0], [-4, -14, 0, 1, 0, 0, -9, 0], [0, 0, -1, 0, 8, -11, 0, 3], [0, 0, 0, 0, 5, 0, 0, -15], [-2, -3, 0, 6, 0, 0, -13, 0], [-9, -9, 0, -6, 0, 0, -8, 0], [0, 0, 6, 0, -5, -6, 0, -3], [-3, 7, 0, 10, 0, 0, 6, 0], [0, 0, -17, 0, -10, -5, 0, 2], [-16, -14, 0, 1, 0, 0, -19, 0], [-2, -15, 0, -2, 0, 0, -17, 0], [-16, 6, 0, -5, 0, 0, -9, 0], [6, 6, 0, -16, 0, 0, 6, 0], [3, 13, 0, 2, 0, 0, -6, 0], [10, 18, 0, -6, 0, 0, -6, 0], [0, 0, -3, 0, 0, 3, 0, 7], [-17, 10, 0, 1, 0, 0, 10, 0], [0, 0, 10, 0, 0, 0, 0, 6], [0, 0, 1, 0, 3, 4, 0, 16], [-3, 8, 0, -11, 0, 0, 2, 0], [-1, 11, 0, 12, 0, 0, 14, 0], [0, 0, 5, 0, -6, 7, 0, 5], [7, 11, 0, 9, 0, 0, 19, 0], [-21, 9, 0, -2, 0, 0, 6, 0], [0, 0, 3, 0, -6, -7, 0, -13], [0, 0, 5, 0, 5, -8, 0, 2], [14, -14, 0, 5, 0, 0, -15, 0], [0, 0, -14, 0, -2, -15, 0, -1], [15, -1, 0, -3, 0, 0, 15, 0], [0, 0, 3, 0, 0, -3, 0, -14], [3, 23, 0, -8, 0, 0, 12, 0], [4, 8, 0, 9, 0, 0, 9, 0], [0, 0, -2, 0, -13, 6, 0, 11], [0, 0, 21, 0, -2, 7, 0, 10], [0, 0, 0, 0, 13, 5, 0, 0], [0, 0, 15, 0, 8, -1, 0, 5], [0, 0, -2, 0, -12, 13, 0, -3], [-3, -5, 0, -6, 0, 0, -12, 0], [0, 0, 1, 0, -8, -3, 0, -9], [0, 0, 4, 0, 5, 5, 0, 12], [0, 0, -4, 0, 4, -5, 0, -1], [-4, -3, 0, -2, 0, 0, -7, 0], [-9, -17, 0, 13, 0, 0, -5, 0], [0, 0, 9, 0, 18, -1, 0, -14], [-26, 4, 0, 1, 0, 0, -13, 0], [0, 0, 20, 0, -1, 4, 0, 11], [-14, 17, 0, -4, 0, 0, 5, 0], [-11, 11, 0, 14, 0, 0, 6, 0], [0, 0, -22, 0, -1, 4, 0, -3], [0, 0, 11, 0, 4, -3, 0, 9], [-20, -8, 0, -9, 0, 0, -7, 0], [0, 0, -20, 0, -11, 0, 0, 25], [0, 0, 13, 0, 6, 13, 0, -9], [0, 0, -12, 0, -11, 2, 0, -3], [12, -7, 0, -4, 0, 0, 7, 0], [0, 0, 0, -3, 0, 0, 9, 0], [0, 0, 8, 0, 14, 2, 0, 6], [0, 0, -9, 0, -1, -6, 0, -2], [-14, 4, 0, -10, 0, 0, -4, 0], [-22, 0, 0, -5, 0, 0, -1, 0], [0, 0, -7, 0, 6, 3, 0, 19], [-7, 9, 0, 8, 0, 0, 8, 0], [0, 0, 4, 0, -13, 11, 0, -2], [0, 0, 3, 0, -4, -13, 0, 3], [-5, 7, 0, 13, 0, 0, 15, 0], [-13, -6, 0, 5, 0, 0, -10, 0], [0, 0, 1, 0, 3, 10, 0, 20], [-6, -14, 0, 7, 0, 0, 5, 0], [2, 9, 0, -6, 0, 0, 19, 0], [0, 0, 11, 0, 14, 13, 0, 5], [39, 13, 0, -6, 0, 0, 8, 0], [-5, -15, 0, 1, 0, 0, -9, 0], [0, 0, -19, 0, -6, -11, 0, 7], [0, 0, -16, 0, 2, -18, 0, -28], [0, 0, 7, 0, -8, 11, 0, 22], [3, -7, 0, -7, 0, 0, 3, 0], [0, 0, 14, 0, -2, -3, 0, -11], [0, 34, 0, 3, 0, 0, 23, 0], [0, 0, -8, 0, -8, -11, 0, -15], [0, 0, 5, 0, -14, 1, 0, 1], [27, 12, 0, -5, 0, 0, 6, 0], [0, 0, 14, 0, -3, 1, 0, 4], [-3, 0, 0, 13, 0, 0, 14, 0], [14, 6, 0, -9, 0, 0, 11, 0], [0, 0, -15, 0, 8, -7, 0, -20], [0, 0, -19, 0, -8, 5, 0, 11], [0, 0, -3, 0, -8, 3, 0, 4], [0, 0, 12, 0, -10, 2, 0, 8], [1, 9, 0, 4, 0, 0, -4, 0], [0, 0, 11, 0, -3, -2, 0, 12], [-5, -8, 0, 3, 0, 0, -18, 0], [0, 0, -20, 0, -13, -9, 0, 2], [0, 0, 20, 0, 12, 5, 0, -11], [0, 0, 4, 0, 13, -4, 0, -13], [-3, 5, 0, -6, 0, 0, 6, 0], [-12, -5, 0, 2, 0, 0, 3, 0], [0, 0, 10, 0, 10, 2, 0, 6], [-20, 26, 0, -4, 0, 0, 20, 0], [-7, 15, 0, 4, 0, 0, 30, 0], [8, 32, 0, -5, 0, 0, -3, 0], [0, 0, 34, 0, 18, 1, 0, -11], [-9, -15, 0, 4, 0, 0, -10, 0], [5, -8, 0, 21, 0, 0, 6, 0], [18, -14, 0, 6, 0, 0, -34, 0], [0, 0, 12, 0, 15, 8, 0, -11], [-28, -14, 0, 2, 0, 0, -2, 0], [0, 0, 7, 0, 18, -11, 0, -29], [0, 0, 1, 0, -14, 13, 0, -10], [0, 0, -8, 0, 1, 5, 0, 4], [0, 0, 10, 0, -11, 8, 0, -1], [-2, -30, 0, 6, 0, 0, -32, 0], [27, 5, 0, -8, 0, 0, -8, 0], [0, 0, 12, 0, -4, 21, 0, 5], [0, 0, -4, 0, 14, -18, 0, -20], [15, -5, 0, 10, 0, 0, -26, 0], [-31, -18, 0, -1, 0, 0, 6, 0], [-1, 21, 0, -2, 0, 0, -6, 0], [15, 9, 0, -7, 0, 0, -13, 0], [0, 0, -10, 0, -10, 1, 0, 7], [0, 0, 11, 0, 2, 17, 0, 13], [2, -6, 0, 15, 0, 0, 1, 0], [0, 0, -21, 0, -2, 3, 0, 9], [24, 29, 0, -4, 0, 0, 15, 0], [0, 0, 6, 0, 9, -11, 0, -26], [-3, -1, 0, -5, 0, 0, 13, 0], [0, 0, -5, 0, 0, 11, 0, 17], [0, 0, -22, 0, -6, -1, 0, 1], [0, 0, -1, 0, 13, -4, 0, -6], [0, 0, 3, 0, 2, -17, 0, -9], [-3, 13, 0, -13, 0, 0, 21, 0], [0, 0, 8, 0, 19, -9, 0, -12], [-14, 2, 0, 5, 0, 0, 23, 0], [0, 0, 6, 0, -7, 16, 0, -1], [9, -12, 0, 3, 0, 0, -16, 0], [0, 0, 8, 0, -2, 6, 0, 28], [0, 0, -9, 0, 18, -13, 0, -25], [7, -7, 0, 4, 0, 0, 10, 0], [0, 0, -21, 0, -7, -26, 0, -10], [-8, -4, 0, 29, 0, 0, -1, 0], [0, 0, -22, 0, -4, 4, 0, -14], [5, 30, 0, 5, 0, 0, 8, 0], [9, -3, 0, 16, 0, 0, -16, 0], [0, 0, -20, 0, 7, -17, 0, -40], [-11, -5, 0, 7, 0, 0, 17, 0], [0, 0, -2, 0, 8, 1, 0, -21], [26, -12, 0, -9, 0, 0, -1, 0], [0, 0, 37, 0, 10, 11, 0, -13], [-8, -14, 0, -7, 0, 0, -21, 0], [26, -28, 0, -7, 0, 0, -11, 0], [0, 0, 1, 0, 10, -7, 0, 25], [0, 0, -9, 0, -12, -21, 0, -4], [4, 6, 0, -32, 0, 0, 2, 0], [0, 0, 15, 0, 10, 1, 0, 1], [0, 0, 2, 0, 8, 0, 0, 4], [11, -27, 0, -12, 0, 0, 8, 0], [1, -17, 0, 2, 0, 0, 12, 0], [0, 0, 10, 0, 19, 11, 0, -10], [0, 0, 4, 0, 6, -7, 0, -27], [24, -6, 0, -8, 0, 0, 4, 0], [0, 0, 33, 0, 0, 7, 0, 25], [-9, -4, 0, 17, 0, 0, -16, 0], [0, 0, 7, 0, -23, 6, 0, 16], [24, 12, 0, 11, 0, 0, 11, 0], [0, 0, 4, 0, 10, -15, 0, 9], [-6, -18, 0, -9, 0, 0, -33, 0], [0, 0, 15, 0, 0, -9, 0, -6], [14, 19, 0, -4, 0, 0, -13, 0], [0, 0, -10, 0, 2, -2, 0, -22], [23, 9, 0, -14, 0, 0, 8, 0], [0, 0, -17, 0, -6, -13, 0, -4], [0, 0, 0, 0, -16, 5, 0, 19], [15, -13, 0, 9, 0, 0, -17, 0], [11, 7, 0, 0, 0, 0, 22, 0], [0, 0, 5, 0, 1, -8, 0, -8], [-21, 24, 0, -11, 0, 0, 40, 0], [-2, 14, 0, -19, 0, 0, -11, 0], [0, 0, -13, 0, 10, 3, 0, -12], [0, 0, -3, 0, -6, 7, 0, 6], [-8, 16, 0, -9, 0, 0, 9, 0], [21, -24, 0, -7, 0, 0, -6, 0], [0, 0, -20, 0, 10, -2, 0, 0], [6, 18, 0, -12, 0, 0, -12, 0], [0, 0, 19, 0, 32, -7, 0, -29], [22, -8, 0, -7, 0, 0, -19, 0], [0, 0, -4, 0, 19, -8, 0, -7], [-21, -12, 0, -11, 0, 0, -16, 0], [38, 10, 0, 9, 0, 0, 3, 0], [0, 0, -30, 0, -8, 4, 0, -4], [0, 0, 25, 0, -2, -9, 0, 21], [0, 0, -27, 0, -18, -5, 0, 9], [0, 0, 23, 0, -11, -4, 0, 0], [-17, -33, 0, -2, 0, 0, -22, 0], [0, 0, 30, 0, 15, -5, 0, -20], [3, 29, 0, 13, 0, 0, 11, 0], [0, 0, -20, 0, -1, -4, 0, -3], [0, 0, -7, 0, -12, -13, 0, 1], [0, 8, 0, -6, 0, 0, 40, 0], [0, 0, 19, 0, -7, 2, 0, 10], [8, -10, 0, 5, 0, 0, 17, 0], [-15, 18, 0, -9, 0, 0, -2, 0], [29, 9, 0, -4, 0, 0, 18, 0], [0, 0, 5, 0, 7, 12, 0, -22], [0, 0, -26, 0, -3, -14, 0, -35], [0, 0, 24, 0, 6, -6, 0, -10], [0, 0, -24, 0, 12, -17, 0, -17], [30, 8, 0, 17, 0, 0, 25, 0], [9, 11, 0, -4, 0, 0, 28, 0], [-6, 33, 0, -14, 0, 0, 39, 0], [0, 0, 17, 0, 10, 1, 0, -22], [0, 0, 6, 0, 11, -21, 0, 4], [10, -10, 0, 21, 0, 0, -3, 0], [0, 0, 0, 1, 0, 0, 11, 0], [-27, -11, 0, 3, 0, 0, -31, 0], [27, -9, 0, 12, 0, 0, -26, 0], [0, 0, 5, 0, -18, 3, 0, 4], [0, 0, -13, 0, 2, 19, 0, -3], [0, 0, -3, 0, 14, -17, 0, -42], [0, 0, 0, 0, 11, -13, 0, -18], [0, 0, 14, 0, -20, 17, 0, 19], [1, 9, 0, 19, 0, 0, 13, 0], [1, 13, 0, 22, 0, 0, -16, 0], [0, 0, -15, 0, 0, -27, 0, -21], [15, 18, 0, 21, 0, 0, 34, 0], [6, -2, 0, -29, 0, 0, 3, 0], [0, 0, -50, 0, -26, -10, 0, 10], [24, 10, 0, 6, 0, 0, -2, 0], [24, -8, 0, 12, 0, 0, 24, 0], [24, 18, 0, -13, 0, 0, -7, 0], [-8, 43, 0, 2, 0, 0, 35, 0], [0, 0, -24, 0, 4, 7, 0, 7], [0, 0, 2, 0, 10, 14, 0, -10], [-14, 15, 0, -2, 0, 0, 5, 0], [31, -11, 0, -15, 0, 0, 7, 0], [15, -31, 0, 2, 0, 0, -24, 0], [26, -30, 0, -1, 0, 0, -27, 0], [0, 0, -8, 0, -18, 6, 0, 38], [0, 0, -13, 0, 1, 12, 0, 42], [0, 0, -13, 0, -12, 5, 0, -22], [0, 0, 10, 0, -2, 3, 0, 11], [0, 0, -32, 0, 2, -6, 0, -8], [3, -23, 0, 22, 0, 0, -22, 0], [17, 1, 0, 16, 0, 0, -4, 0], [8, -6, 0, 21, 0, 0, 7, 0], [0, 0, 6, 0, -12, 7, 0, 5], [16, -26, 0, -4, 0, 0, -8, 0], [-25, 18, 0, -17, 0, 0, -4, 0], [0, 0, -22, 0, -19, 13, 0, 8], [0, 0, 6, 0, -10, 9, 0, -15], [6, 7, 0, -16, 0, 0, 15, 0], [0, 0, 45, 0, 8, 1, 0, 14], [0, 0, 9, 0, 4, 19, 0, 5], [0, 0, 18, 0, 25, 6, 0, -19], [53, -3, 0, -6, 0, 0, -14, 0], [0, 0, 5, 0, -27, 2, 0, 24], [-33, -17, 0, -4, 0, 0, -26, 0], [0, 0, -6, 0, -1, -1, 0, -26], [0, 0, 8, 0, -14, 11, 0, -1], [-11, -25, 0, -4, 0, 0, 18, 0], [16, -21, 0, -4, 0, 0, -23, 0], [0, 0, 1, 0, 4, -17, 0, -34], [0, 0, -8, 0, -1, -25, 0, 0], [0, 0, 16, 0, -4, 23, 0, 29], [9, 28, 0, 17, 0, 0, 22, 0], [0, 0, -14, 0, 4, -16, 0, -30], [25, 9, 0, 2, 0, 0, -22, 0], [-29, 21, 0, 13, 0, 0, 11, 0], [0, 0, 1, 0, 10, 3, 0, 31], [0, 0, 23, 0, 2, 23, 0, 12], [21, 26, 0, 3, 0, 0, 10, 0], [0, 0, -2, 0, -7, 9, 0, -24], [-6, 12, 0, -9, 0, 0, 33, 0], [-21, 11, 0, -36, 0, 0, 28, 0], [-19, -8, 0, 13, 0, 0, -18, 0], [0, 0, -33, 0, 12, -15, 0, -42], [0, 0, -33, 0, -32, -9, 0, 23], [36, -15, 0, 24, 0, 0, -29, 0], [-3, -37, 0, -2, 0, 0, -6, 0], [55, 15, 0, 8, 0, 0, -2, 0], [0, 0, -34, 0, -5, -21, 0, -16], [0, 0, 42, 0, 11, 18, 0, 9], [0, 0, -23, 0, 4, -19, 0, -19], [0, 0, -30, 0, -8, -3, 0, 35], [22, -4, 0, -7, 0, 0, -21, 0], [0, 0, -14, 0, -12, -20, 0, -12], [-42, -42, 0, 18, 0, 0, -16, 0], [33, 27, 0, -5, 0, 0, 17, 0], [-4, -19, 0, 6, 0, 0, -11, 0], [0, 0, -2, 0, 12, -21, 0, 15], [8, 1, 0, 42, 0, 0, -7, 0], [0, 0, -43, 0, -20, -9, 0, 13], [-2, 18, 0, -10, 0, 0, -8, 0], [11, -13, 0, 24, 0, 0, -36, 0], [0, 0, 15, 0, 22, 11, 0, 3], [0, 0, 10, 0, 29, 9, 0, 4], [0, 0, -4, 0, 29, 16, 0, -5], [4, -34, 0, -13, 0, 0, 17, 0], [0, 0, 10, 0, 10, -6, 0, -10], [-14, -34, 0, 4, 0, 0, 6, 0], [0, 0, -7, 0, -4, -29, 0, 18], [19, 7, 0, -6, 0, 0, 0, 0], [4, 30, 0, -13, 0, 0, 29, 0], [0, 0, -35, 0, 4, -17, 0, -25], [-22, 25, 0, 16, 0, 0, -11, 0], [0, 0, -20, 0, -10, 22, 0, -4], [10, -9, 0, 18, 0, 0, 13, 0], [27, 11, 0, -4, 0, 0, 28, 0], [0, 0, 14, 0, -15, -12, 0, -3], [0, 0, 56, 0, 18, 23, 0, 5], [-3, -15, 0, -25, 0, 0, -27, 0], [0, 0, 22, 0, -9, 15, 0, -18], [8, 1, 0, -20, 0, 0, -25, 0], [0, 0, 13, 0, -17, -4, 0, -24], [0, 0, -29, 0, 4, 9, 0, -5], [0, 0, -21, 0, -32, -13, 0, 10], [-39, 7, 0, 15, 0, 0, -11, 0], [-8, 2, 0, 21, 0, 0, -21, 0], [31, -41, 0, -10, 0, 0, -12, 0], [-30, 18, 0, -20, 0, 0, 32, 0], [0, 0, -18, 0, 11, -10, 0, -33], [-18, -14, 0, 7, 0, 0, 27, 0], [-3, -9, 0, -2, 0, 0, -8, 0], [-37, 14, 0, 7, 0, 0, 24, 0], [0, 0, -29, 0, 4, -13, 0, -22], [0, 0, -10, 0, 28, -4, 0, -30], [0, 0, 9, 0, -16, -9, 0, -35], [-45, 21, 0, -19, 0, 0, 27, 0], [0, 0, -11, 0, -8, -13, 0, 31], [0, 0, -2, 0, 21, 8, 0, 17], [0, 0, -23, 0, -6, -7, 0, 12], [0, 0, -32, 0, -13, -25, 0, -18], [6, 4, 0, -47, 0, 0, 3, 0], [-24, -19, 0, -2, 0, 0, -19, 0], [0, 0, -33, 0, -28, 5, 0, 44], [-42, 8, 0, 1, 0, 0, -27, 0], [-5, 30, 0, 13, 0, 0, 6, 0], [-26, 28, 0, 3, 0, 0, -21, 0], [0, 0, 47, 0, 2, 11, 0, 1]];
    aps := ConvertToHeckeField(raw_aps);
    chi := MakeCharacter_4096_a_Hecke(Universe(aps));
    return ExtendMultiplicatively(weight, aps, chi);
end function;


// To make the newform (type ModFrm), type "MakeNewformModFrm_4096_2_a_s();".
// 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_4096_2_a_s(:prec:=8)
    chi := MakeCharacter_4096_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_4096_2_a_s();".
// 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_4096_2_a_s( : sign := -1)
    R<x> := PolynomialRing(Rationals());
    chi := MakeCharacter_4096_a();
    // SetVerbose("ModularSymbols", true);
    Snew := NewSubspace(CuspidalSubspace(ModularSymbols(chi,2,sign)));
    Vf := Kernel([<3,R![-2, 4, 2, -4, 1]>,<5,R![4, 0, -32, 0, 44, 0, -16, 0, 1]>,<7,R![16, 0, -448, 0, 272, 0, -32, 0, 1]>,<23,R![80656, 0, -43904, 0, 3920, 0, -112, 0, 1]>],Snew);
    return Vf;
end function;