1: (2 8 18)

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

2: (1 8 3)

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

3: (4 20 17)

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

4: (0 18 3)

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