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A071749 Expansion of (1+x^4*C^2)*C^4, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108. 0
1, 4, 14, 48, 166, 578, 2029, 7182, 25623, 92078, 333064, 1211896, 4433175, 16294856, 60155235, 222950730, 829284435, 3094726590, 11583668940, 43478013360, 163606061280, 617094776844, 2332666266954, 8835573652892 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

CROSSREFS

Sequence in context: A002057 A047048 A071745 * A071753 A071757 A082590

Adjacent sequences:  A071746 A071747 A071748 * A071750 A071751 A071752

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 06 2002

STATUS

approved

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Last modified October 19 11:43 EDT 2018. Contains 316359 sequences. (Running on oeis4.)