1: (0 2 15)

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

2: (1 20 3)

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

3: (6 21 19)

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

4: (3 18 13)

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