1: (0 2 12)

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

2: (1 19 5)

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

3: (4 12 16)

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

4: (12 17 18)

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