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