1: (7 10 15)

(0 19 4)(1 11 9)(2 17 16)(3 7 12 10 5)(6 13 8)(14 20 18)(15)

2: (1 11 9)

(0 19 4)(1)(2 17 16)(3 7 12 10 5)(6 13 8)(9)(11)(14 20 18)(15)

3: (6 13 8)

(0 19 4)(1)(2 17 16)(3 7 12 10 5)(6)(8)(9)(11)(13)(14 20 18)(15)

4: (3 7 12)

(0 19 4)(1)(2 17 16)(3 10 5)(6)(7)(8)(9)(11)(12)(13)(14 20 18)(15)