1: (0 11 20)

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

2: (0 5 8)

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

3: (2 9 7)

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

4: (1 20 8)

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