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Expansion of (1+x^3*C^4)*C, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. for Catalan numbers, A000108.
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%I #4 Mar 30 2012 16:49:26

%S 1,1,2,6,19,62,207,704,2431,8502,30056,107236,385662,1396652,5088865,

%T 18642420,68624295,253706790,941630580,3507232740,13105289370,

%U 49114150020,184560753390,695267483664,2625197720454,9933364416572

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

%Y Essentially the same as A026012.

%K nonn

%O 0,3

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