1: (0 2 15)

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

2: (1 20 6)

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

3: (4 15 21)

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

4: (3 7 5)

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