1: (5 9 15)

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

2: (8 17 10)

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

3: (1 16 12)

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

4: (7 11 15)

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