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

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

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

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

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