1: (0 1 15)

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

2: (4 15 21)

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

3: (3 18 12)

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

4: (1 20 15)

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