1: (0 7 19)

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

2: (9 14 21)

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

3: (6 11 8)

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

4: (7 20 14)

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