1: (0 2 13)

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

2: (1 20 8)

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

3: (4 13 21)

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

4: (3 11 5)

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