1: (0 3 7)

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

2: (1 16 4)

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

3: (2 8 5)

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

4: (10 14 18)

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