1: (0 2 13)

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

2: (1 16 7)

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

3: (4 13 21)

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

4: (3 11 5)

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