1: (0 1 15)

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

2: (4 15 21)

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

3: (2 18 13)

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

4: (3 20 5)

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