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