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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.
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%I #3 Mar 30 2012 16:49:26

%S 1,4,14,48,166,578,2029,7182,25623,92078,333064,1211896,4433175,

%T 16294856,60155235,222950730,829284435,3094726590,11583668940,

%U 43478013360,163606061280,617094776844,2332666266954,8835573652892

%N 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.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Jun 06 2002