1: (1 4 15)

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

2: (0 6 2)

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

3: (3 9 5)

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

4: (4 20 8)

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