1: (2 6 20)

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

2: (0 19 3)

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

3: (2 6 20)

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

4: (1 7 4)

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