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

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

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

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

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