1: (0 1 17)

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

2: (9 17 20)

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

3: (5 18 16)

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

4: (1 19 17)

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