1: (10 17 20)

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

2: (2 6 20)

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

3: (0 19 4)

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

4: (3 8 5)

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