A248386 Number of n-strand braids of length at most 6 in the dual monoid B_n^{+*}.

1, 8, 1515, 334632

Offset

1,2

Links

Table of n, a(n) for n=1..4.

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: A252176 A252763 A096970 * A114617 A162014 A300545

Adjacent sequences: A248383 A248384 A248385 * A248387 A248388 A248389

Keyword

nonn,more

Author

N. J. A. Sloane, Oct 15 2014

Status

approved