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