1: (0 1 16)

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

2: (3 16 20)

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

3: (2 17 12)

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

4: (1 19 16)

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