1: (0 4 15)

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

2: (3 17 6)

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

3: (1 18 15)

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

4: (0 19 17)

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