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

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

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

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

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