1: (0 1 5)

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

2: (5 10 20)

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

3: (2 15 7)

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

4: (4 20 6)

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