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A278590
a(n) = A278589(n)/2^n.
1
1, 1, 4, 40, 778, 25306
OFFSET
0,3
LINKS
Z. Hamaker, E. Marberg, B. Pawlowski, Involution words II: braid relations and atomic structures, arXiv preprint arXiv:1601.02269, 2016. See Remark following Th. 6.18.
CROSSREFS
Sequence in context: A258662 A140701 A277748 * A370086 A087047 A211035
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Dec 02 2016
STATUS
approved