1: (5 9 18)

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

2: (4 16 6)

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

3: (11 19 17)

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

4: (3 7 5)

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