cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A067326 Fifth column of triangle A067323.

Original entry on oeis.org

14, 56, 202, 715, 2529, 8986, 32123, 115556, 418200, 1521976, 5567551, 20462525, 75528895, 279874350, 1040790135, 3883140600, 14531382060, 54529456320, 205146226200, 773608833894, 2923686178098, 11071970477876
Offset: 0

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Author

Wolfdieter Lang, Feb 05 2002

Keywords

Comments

Also fifth diagonal of triangle A028364.

Crossrefs

Cf. A067325 (fourth column).

Formula

a(n)= A067323(n+4, 4)= C(n+5)-sum(C(k)*C(n+4-k), k=0..3), C(n) := A000108(n) (Catalan).
G.f.: (c(x)^3)*(5+5*c(x)+3*c(x)^2+c(x)^3), with c(x) g.f. of A000108 (Catalan).
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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