1: (0 4 7)

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

2: (2 9 5)

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

3: (0 4 7)

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

4: (1 16 3)

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