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

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

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

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

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