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.

1, 4, 14, 48, 166, 578, 2029, 7182, 25623, 92078, 333064, 1211896, 4433175, 16294856, 60155235, 222950730, 829284435, 3094726590, 11583668940, 43478013360, 163606061280, 617094776844, 2332666266954, 8835573652892

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