C2 x S4 x S3
r0 := (2,5)(6,11)(7,10)(8,14)(13,16)(15,17);
r1 := (1,2)(3,8)(4,7)(5,10)(6,12)(9,15)(11,17)(13,18)(14,16);
r2 := (1,3)(2,6)(4,9)(5,11)(7,13)(10,16);
r3 := (1,4)(2,7)(3,9)(5,10)(6,13)(11,16);
F := FreeGroup(4);
r0 := F.1;; r1 := F.2;; r2 := F.3;; r3 := F.4;;
G := F/[ r0^2, r2^2, r3^2, r1^2, (r3*r2)^2, (r0*r3)^2, (r0*r2)^2, (r1*r0*r1*r3)^2, (r1*r0*r1*r2)^2, r1*r2*(r3*r1)^2*r2*r1*r3, (r1*r0)^6, (r1*r2)^3*r3*(r1*r2)^2*r1*r0*r2*r3*r0 ];;
type 0: 6 elements
type 1: 36 elements
type 2: 6 elements
type 3: 4 elements