1: (0 4 7)

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

2: (6 7 19)

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

3: (2 20 17)

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

4: (1 5 3)

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