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