1: (0 2 15)

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

2: (1 20 5)

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

3: (13 21 17)

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

4: (3 15 16)

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