1: (0 1 17)

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

2: (15 17 21)

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

3: (13 19 16)

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

4: (10 20 17)

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