%I A032952
%S A032952 1,3,11,41,152,561,2067,7618,28118,104006,385662,1433797,5344510,
%T A032952 19973085,74827395,281000430,1057628550,3989213610,15077120010,
%U A032952 57092280570,216579650664,822991216746,3132339521966,11939881979076
%N A032952 Expansion of (1+x*C^4)*C^2, where C = (1-(1-4*x)^(1/2))/(2*x) is g.f. 
               for Catalan numbers, A000108.
%Y A032952 Sequence in context: A075276 A086972 A077831 this_sequence A001835 A079935 
               A113437
%Y A032952 Adjacent sequences: A032949 A032950 A032951 this_sequence A032953 A032954 
               A032955
%K A032952 nonn
%O A032952 0,2
%A A032952 N. J. A. Sloane (njas(AT)research.att.com), Jun 06 2002