1: (0 1 7)

(0)(1 20 18 10 7 21 3)(2 8 4)(5 13 6)(9 19 17 15 11)(12 16 14)

2: (3 7 21)

(0)(1 20 18 10 7)(2 8 4)(3)(5 13 6)(9 19 17 15 11)(12 16 14)(21)

3: (2 8 4)

(0)(1 20 18 10 7)(2)(3)(4)(5 13 6)(8)(9 19 17 15 11)(12 16 14)(21)

4: (1 20 7)

(0)(1)(2)(3)(4)(5 13 6)(7 18 10)(8)(9 19 17 15 11)(12 16 14)(20)(21)