1: (2 8 11)

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

2: (1 9 4)

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

3: (6 12 10)

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

4: (3 13 11)

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