A248385 Number of n-strand braids of length at most 5 in the dual monoid B_n^{+*}.
1, 7, 749, 68927, 24672817
Offset: 1
Links
- Philippe Biane, Patrick Dehornoy, Dual Garside structure of braids and free cumulants of products, arXiv:1407.1604 [math.CO], (7-July-2014)