1: (2 15 20)

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

2: (0 17 7)

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

3: (4 15 9)

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

4: (6 14 8)

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