1: (0 1 16)

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

2: (4 16 21)

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

3: (2 20 8)

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

4: (3 14 5)

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