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