1: (2 8 20)

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

2: (0 9 7)

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

3: (1 19 3)

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

4: (2 16 4)

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