1: (0 1 4)

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

2: (3 17 21)

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

3: (2 19 16)

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

4: (1 20 17)

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