1: (0 1 4)

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

2: (2 9 15)

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

3: (8 19 14)

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

4: (3 21 18)

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