1: (0 8 13)

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

2: (7 19 11)

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

3: (5 9 13)

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

4: (6 12 10)

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