%I A126946
%S A126946 0,2,4,12,40,128,404,1282,4076,12946,41110,130570,414708,1317126,4183250,
%T A126946 13286248,42197850,134022604,425663006,1351928684,4293798244,13637334278,
%U A126946 43312907878,137564127106,436911072754,1387653086532,4407260902428,13997697874880
%N A126946 The sequence b[n] defined in A126940.
%Y A126946 Sequence in context: A000940 A008404 A099214 this_sequence A113179 A056236 
               A028329
%Y A126946 Adjacent sequences: A126943 A126944 A126945 this_sequence A126947 A126948 
               A126949
%K A126946 nonn
%O A126946 0,2
%A A126946 N. J. A. Sloane (njas(AT)research.att.com), Mar 18 2007