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

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

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

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

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