1: (1 5 9)

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

2: (0 6 4)

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

3: (1 5 9)

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

4: (3 11 8)

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