1: (0 1 4)

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

2: (2 9 16)

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

3: (8 18 11)

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

4: (14 20 17)

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