1: (0 2 15)

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

2: (5 15 19)

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

3: (3 17 13)

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

4: (10 16 14)

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