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