1: (0 1 5)

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

2: (5 17 20)

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

3: (16 21 19)

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

4: (1 20 8)

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