(0 21 15)(1 22 13)(2 12 9 7 4)(3 19 17)(5 8 6)(10 20 11)(14 18 16)
ALLOWS (11/8)-SEQUENCE
1: (11 18 20)

(0 21 15)(1 22 13)(2 12 9 7 4)(3 19 17)(5 8 6)(10 20 16 14 18)(11)
2: (3 19 17)

(0 21 15)(1 22 13)(2 12 9 7 4)(3)(5 8 6)(10 20 16 14 18)(11)(17)(19)
3: (2 12 9)

(0 21 15)(1 22 13)(2 7 4)(3)(5 8 6)(9)(10 20 16 14 18)(11)(12)(17)(19)
4: (10 20 16)

(0 21 15)(1 22 13)(2 7 4)(3)(5 8 6)(9)(10 14 18)(11)(12)(16)(17)(19)(20)