OFFSET
0,3
LINKS
Andrew Elvey Price, Table of n, a(n) for n = 0..28
Jonathan Bloom and Sergi Elizalde, Pattern avoidance in matchings and partitions, arXiv preprint arXiv:1211.3442 [math.CO], 2012. See Table 1.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 03 2013
EXTENSIONS
a(11)-a(22) from Andrew Elvey Price, Feb 13 2024
a(0)=1 prepended by Alois P. Heinz, Feb 13 2024
STATUS
approved