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A201693 Number of permutations that avoid the consecutive pattern 2413. 7
1, 1, 2, 6, 23, 110, 632, 4237, 32465, 279828, 2679950, 28232972, 324470844, 4039771856, 54165468774, 778128659247, 11923645252411, 194131328012012, 3346615262190736, 60897160676005110, 1166446154857250412, 23459656378909613446, 494290181112325561351 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Ray Chandler and Alois P. Heinz, Table of n, a(n) for n = 0..140 (first 61 terms from Ray Chandler)

A. Baxter, B. Nakamura, and D. Zeilberger. Automatic generation of theorems and proofs on enumerating consecutive Wilf-classes

V. Dotsenko and A. Khoroshkin, Shuffle algebras, homology, and consecutive pattern avoidance, arXiv preprint arXiv:1109.2690, 2011

FORMULA

The reference gives a g.f. There is an associated triangle of numbers c_{n,l} that should be added to the OEIS if it is not already present.

CROSSREFS

Cf. A113228, A113229, A117156, A117158, A117226, A201692.

Sequence in context: A201692 A113229 A113228 * A063255 A117158 A317128

Adjacent sequences:  A201690 A201691 A201692 * A201694 A201695 A201696

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Dec 03 2011

EXTENSIONS

More terms from Ray Chandler, Dec 06 2011

STATUS

approved

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Last modified October 4 15:10 EDT 2022. Contains 357239 sequences. (Running on oeis4.)