1: (1 7 20)

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

2: (0 9 2)

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

3: (1 7 20)

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

4: (5 12 8)

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