1: (0 2 15)

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

2: (1 20 3)

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

3: (7 21 17)

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

4: (2 19 4)

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