1: (0 3 15)

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

2: (1 19 4)

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

3: (3 17 6)

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

4: (14 18 16)

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