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A071756 Expansion of (1+x^4*C^4)*C^3, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108. 0
1, 3, 9, 28, 91, 304, 1036, 3586, 12571, 44538, 159222, 573648, 2080766, 7592438, 27850010, 102638190, 379859835, 1411205250, 5260849110, 19673751960, 73784984490, 277457327160, 1045879727568, 3951343037220, 14959393005886 (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: A071744 A071748 A071752 * A176673 A215007 A105849

Adjacent sequences:  A071753 A071754 A071755 * A071757 A071758 A071759

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 06 2002

STATUS

approved

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Last modified July 12 21:31 EDT 2020. Contains 335669 sequences. (Running on oeis4.)