1: (0 8 11)

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

2: (11 15 18)

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

3: (2 17 14)

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

4: (12 16 18)

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