// Magma code for the lmfdb family of higher genus curves 13.64-18.0.4-4-8.1
// The results are stored in a list of records called 'data'

RecFormat:=recformat<group,gp_id, signature,gen_vectors,conj_classes,genus,dimension,r,g0, passport_label,gen_vect_label, is_hyperelliptic, hyp_involution, is_cyclic_trigonal,cyc_auto,full_auto, full_sign,topological_class,braid_class>;

data:=[];

// Create group as a permutation group, and generate data which is the same for all entries.
gp_id:=[64,18];
H:=SmallGroup(gp_id[1],gp_id[2]); n:=#H; LP:=[]; LG:=[g : g in H]; for i in [1..n] do x:=LG[i]; Tx:=[LG[j]*x : j in [1..n]]; permL:=[]; for j in [1..n] do for k in [1..n] do if Tx[j] eq LG[k] then permL[j]:=k;  break; end if; end for; end for; Append(~LP,permL); end for; G:=PermutationGroup<n|LP>; 
signature:=[0,4,4,8];
genus:=13;
r:=#signature-1;
g0:=signature[1];
dim:=3*g0-3+r;
S:=Sym(gp_id[1]);

// Here we add an action to data.
gen_vectors:=[[17, 18, 19, 20, 22, 21, 24, 23, 25, 26, 27, 28, 30, 29, 32, 31, 3, 4, 1, 2, 8, 7, 6, 5, 11, 12, 9, 10, 16, 15, 14, 13, 49, 50, 51, 52, 54, 53, 56, 55, 57, 58, 59, 60, 62, 61, 64, 63, 35, 36, 33, 34, 40, 39, 38, 37, 43, 44, 41, 42, 48, 47, 46, 45], [33, 34, 36, 35, 37, 38, 40, 39, 41, 42, 44, 43, 45, 46, 48, 47, 57, 58, 60, 59, 61, 62, 64, 63, 50, 49, 51, 52, 54, 53, 55, 56, 5, 6, 8, 7, 1, 2, 4, 3, 13, 14, 16, 15, 9, 10, 12, 11, 30, 29, 31, 32, 26, 25, 27, 28, 21, 22, 24, 23, 17, 18, 20, 19], [56, 55, 53, 54, 51, 52, 50, 49, 64, 63, 61, 62, 59, 60, 58, 57, 46, 45, 47, 48, 41, 42, 44, 43, 37, 38, 40, 39, 34, 33, 35, 36, 19, 20, 18, 17, 24, 23, 21, 22, 27, 28, 26, 25, 32, 31, 29, 30, 10, 9, 11, 12, 13, 14, 16, 15, 1, 2, 4, 3, 6, 5, 7, 8]];
cc:=[11,15,20];
gen_vectors_as_perm:=[S!perm : perm in gen_vectors];
passport_label:=1;
gen_vect_label:=1;
full_auto:=[128,71];
full_sign:=[0,2,4,16];
Append(~data, rec<RecFormat | group:=G, gp_id:=gp_id, signature:=signature, gen_vectors:=gen_vectors_as_perm, conj_classes:=cc, genus:=genus, dimension:=dim, r:=r, g0:=g0, passport_label:= passport_label,gen_vect_label:=gen_vect_label, braid_class:=braid_class, topological_class:=topological_class, full_auto:=full_auto, full_sign:=full_sign>);
