1: (0 1 15)

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

2: (7 15 19)

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

3: (6 17 13)

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

4: (11 16 14)

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