1: (0 1 2)

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

2: (2 15 20)

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

3: (7 21 19)

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

4: (1 20 3)

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