1: (6 10 20)

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

2: (0 19 8)

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

3: (7 11 9)

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

4: (4 20 15)

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