1: (0 2 10)

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

2: (1 17 7)

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

3: (4 10 21)

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

4: (3 8 6)

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