1: (0 1 17)

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

2: (3 17 21)

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

3: (2 19 8)

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

4: (7 18 16)

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