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

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

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

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

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