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A234281
Number of 312-avoiding extensions of comb K_{s,3}^{alpha}.
0
1, 8, 73, 738
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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:
A254150
A024104
A152429
*
A176734
A294606
A294809
Adjacent sequences:
A234278
A234279
A234280
*
A234282
A234283
A234284
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Dec 28 2013
STATUS
approved
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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)