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