%I #3 Mar 30 2012 16:50:48
%S 1,3,26,345,5754,110586,2341548,53208441,1276027610,31930139670,
%T 826963069140,22035414489270,601361536493340,16749316314679500,
%U 474777481850283240,13665774112508864385
%N Bisection of A138543.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Mar 25 2008
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