1: (0 3 16)

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

2: (2 21 6)

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

3: (4 16 18)

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

4: (1 3 17)

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