1: (0 4 8)

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

2: (4 14 18)

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

3: (13 19 17)

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

4: (2 21 16)

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