A071739 - OEIS

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A071739

Expansion of (1+x^3*C^4)*C^2, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.

1, 2, 5, 15, 48, 159, 539, 1859, 6500, 22984, 82042, 295222, 1069776, 3900225, 14296455, 52656315, 194777340, 723281460, 2695246950, 10075695330, 37776123840, 142010723790, 535172997294, 2021412800430, 7651226309768

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..24.

CROSSREFS

Sequence in context: A321467 A301994 A289589 * A268407 A261003 A365268

Adjacent sequences: A071736 A071737 A071738 * A071740 A071741 A071742

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 06 2002

STATUS

approved