1: (4 9 20)

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

2: (0 10 8)

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

3: (4 9 20)

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

4: (2 11 5)

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