1: (0 1 7)

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

2: (5 7 20)

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

3: (2 8 6)

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

4: (1 12 7)

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