1: (0 2 8)

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

2: (1 20 3)

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

3: (2 16 4)

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

4: (3 9 6)

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