1: (0 8 18)

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

2: (5 19 16)

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

3: (4 20 18)

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

4: (6 19 17)

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