1: (0 1 18)

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

2: (6 18 21)

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

3: (5 19 16)

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

4: (1 20 18)

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