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