Search: id:A104858
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%I A104858
%S A104858 1,2,5,16,61,258,1161,5440,26233,129282,648141,3294864,16943733,
%T A104858 87983106,460676625,2429478144,12893056497,68802069506,368961496469,
%U A104858 1987323655056,10746633315501,58321460916482,317537398625945
%N A104858 Partial sums of the little Schroeder numbers (A001003).
%F A104858 G.f.=[1+z-sqrt(1-6z+z^2)]/[4z(1-z)].
%p A104858 G:=(1+z-sqrt(1-6*z+z^2))/4/z/(1-z): Gser:=series(G,z=0,29): 1,seq(coeff(Gser,
               z^n),n=1..27);
%Y A104858 Cf. A001003.
%Y A104858 Sequence in context: A012051 A012159 A009736 this_sequence A138265 A000111 
               A163747
%Y A104858 Adjacent sequences: A104855 A104856 A104857 this_sequence A104859 A104860 
               A104861
%K A104858 nonn
%O A104858 0,2
%A A104858 Emeric Deutsch (deutsch(AT)duke.poly.edu), Apr 24 2005

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