1: (0 3 12)

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

2: (2 21 6)

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

3: (4 15 7)

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

4: (1 6 12)

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