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A234280
Number of 231-avoiding extensions of comb K_{s,3}^{alpha}.
0
1, 8, 91, 1210
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OFFSET
1,2
COMMENTS
No formula is presently known.
LINKS
Table of n, a(n) for n=1..4.
S. Yakoubov,
Pattern Avoidance in Extensions of Comb-Like Posets
, arXiv preprint arXiv:1310.2979, 2013
CROSSREFS
Sequence in context:
A184709
A190943
A180912
*
A298013
A302614
A220573
Adjacent sequences:
A234277
A234278
A234279
*
A234281
A234282
A234283
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Dec 28 2013
STATUS
approved
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Last modified March 29 05:41 EDT 2024. Contains 371264 sequences. (Running on oeis4.)