A5 : S3
r0 := (1,2)(3,6)(4,7)(8,9)(11,12)(14,15);
r1 := (2,5)(3,8)(4,9)(6,7)(10,12)(14,15);
r2 := (1,3)(2,6)(4,7)(5,10)(8,11)(9,12);
r3 := (1,4)(2,7)(3,6)(10,13)(11,14)(12,15);
F := FreeGroup(4);
r0 := F.1;; r1 := F.2;; r2 := F.3;; r3 := F.4;;
G := F/[ r1^2, r0^2, r2^2, r3^2, (r3*r0)^2, (r0*r2)^2, (r3*r2)^3, (r0*r1)^3, (r0*r2*r1)^3, (r3*r1*r3*r2)^2*r1*r2*r1 ];;
type 0: 3 elements
type 1: 30 elements
type 2: 10 elements
type 3: 15 elements