1: (1 6 13)

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

2: (0 8 2)

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

3: (1 6 13)

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

4: (4 10 7)

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