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

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

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

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

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