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A234283 Number of 321-avoiding extensions of comb K_{s,3}^{alpha}. 0
1, 10, 161, 3196 (list; graph; refs; listen; history; text; internal format)
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: A112125 A090374 A034724 * A074703 A190903 A303486

Adjacent sequences:  A234280 A234281 A234282 * A234284 A234285 A234286

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Dec 28 2013

STATUS

approved

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Last modified December 12 01:57 EST 2019. Contains 329948 sequences. (Running on oeis4.)