%I A138462
%S A138462 1,6,90,1806,41586,1037718,27297738,745387038,20927156706,600318853926,
%T A138462 17518619320890,518431875418926
%N A138462 A bisection of A006318.
%Y A138462 Sequence in context: A091800 A037959 A006480 this_sequence A002896 A004996 
               A001499
%Y A138462 Adjacent sequences: A138459 A138460 A138461 this_sequence A138463 A138464 
               A138465
%K A138462 nonn
%O A138462 0,2
%A A138462 N. J. A. Sloane (njas(AT)research.att.com), May 08 2008