1: (2 6 10)

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

2: (5 12 7)

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

3: (8 13 11)

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

4: (4 7 10)

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