SetVerbose("ModularForms",2);
SetVerbose("ModularSymbols",2);
G<a,b,c,d> := DirichletGroup(420); eps := c;M := ModularForms(eps,2); S := CuspidalSubspace(M);
Attach("eigenrep.m");
M5 := ModularForms(M,5);
Dimension(NewSubspace(CuspidalSubspace(M)));


Newforms(M5);

Eigenbasis(M,84);
