1: (0 6 12)

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

2: (1 20 8)

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

3: (5 10 7)

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

4: (2 6 18)

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