1: (0 2 17)

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

2: (1 20 4)

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

3: (2 19 6)

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

4: (5 18 8)

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