1: (0 1 17)

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

2: (8 17 21)

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

3: (5 19 13)

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

4: (7 14 11)

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