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

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

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

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

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