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