1: (0 4 15)

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

2: (3 19 5)

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

3: (4 17 8)

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

4: (14 18 16)

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