1: (3 8 16)

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

2: (0 10 5)

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

3: (1 17 15)

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

4: (3 14 6)

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