1: (9 12 15)

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

2: (6 14 11)

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

3: (8 17 10)

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

4: (3 12 7)

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