1: (3 10 12)

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

2: (9 13 11)

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

3: (1 12 8)

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

4: (0 4 2)

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