1: (0 1 3)

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

2: (3 18 20)

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

3: (13 21 19)

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

4: (2 17 4)

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