((C2 x C2) : ((C3 x C3) : C3)) : C2
r0 := (1,2)(3,5)(4,6)(8,12)(10,14)(15,16);
r1 := (1,2)(3,7)(4,9)(5,11)(6,13)(8,12)(10,14)(15,17)(16,18);
r2 := (1,3)(2,5)(4,10)(6,14)(7,11)(8,15)(9,13)(12,16)(17,18);
r3 := (1,4)(2,6)(3,8)(5,12)(7,11)(9,13)(10,15)(14,16)(17,18);
F := FreeGroup(4);
r0 := F.1;; r1 := F.2;; r2 := F.3;; r3 := F.4;;
G := F/[ r0^2, r1^2, r2^2, r3^2, (r0*r3)^2, (r2*r0)^2, (r2*r1)^3, (r1*r3)^3, (r3*r2)^3, (r1*r0*r2)^3, (r3*r1*r0)^3, (r1*r3*r2*r3)^3 ];;
type 0: 4 elements
type 1: 18 elements
type 2: 9 elements
type 3: 9 elements