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