A248385 Number of n-strand braids of length at most 5 in the dual monoid B_n^{+*}.

1, 7, 749, 68927, 24672817

Offset

1,2

Links

Table of n, a(n) for n=1..5.

Philippe Biane, Patrick Dehornoy, Dual Garside structure of braids and free cumulants of products, arXiv:1407.1604 [math.CO], (7-July-2014)

Crossrefs

Cf. A000108, A168344, A248382-A248386.

Sequence in context: A246107 A156618 A027685 * A242826 A112904 A137050

Adjacent sequences: A248382 A248383 A248384 * A248386 A248387 A248388

Keyword

nonn,more

Author

N. J. A. Sloane, Oct 15 2014

Status

approved