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