1: (0 1 7)

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

2: (3 7 21)

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

3: (2 8 4)

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

4: (1 19 7)

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