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

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

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

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

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