1: (0 7 20)

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

2: (2 11 18)

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

3: (14 21 19)

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

4: (10 15 13)

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