1: (2 7 15)

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

2: (0 8 6)

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

3: (2 7 15)

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

4: (1 19 4)

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