1: (0 1 15)

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

2: (5 15 19)

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

3: (3 17 12)

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

4: (11 16 13)

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