1: (0 2 15)

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

2: (5 15 20)

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

3: (4 18 7)

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

4: (1 19 17)

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