1: (0 6 8)

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

2: (5 11 7)

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

3: (4 19 8)

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

4: (1 20 13)

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