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

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

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

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

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