1: (1 4 9)

(0 20 3)(1 4 9)(2 15 13 11 8)(5 12 10 7 6)(14 18 16)(17 21 19)

2: (2 11 8)

(0 20 3)(1 4 9)(2)(5 12 10 7 6)(8)(11 15 13)(14 18 16)(17 21 19)

3: (1 4 9)

(0 20 3)(1)(2)(4)(5 12 10 7 6)(8)(9)(11 15 13)(14 18 16)(17 21 19)

4: (7 12 10)

(0 20 3)(1)(2)(4)(5 12 6)(7)(8)(9)(10)(11 15 13)(14 18 16)(17 21 19)