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