1: (10 15 18)

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

2: (1 3 18)

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

3: (2 20 5)

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

4: (14 19 17)

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