%I
%S 1,3,9,21,45,99,225,507,1101,2295,4653,9381,19221,40491,87453,191205,
%T 417117,898119,1897125,3922977,7945713,15800367,30960765,60068235,
%U 116058981,224778159,439342677,871864317,1764029985,3643978479,7672441101,16397598555,35377739037
%N Binomial transform of A166242
%F A007318 as an infinite lower triangular matrix * A166242 as a vector; where
%F A166242 = (1, 2, 4, 2, 4, 8, 4, 2,...)
%e a(2) = 21 = (1, 3, 3, 1) dot (1, 2, 4, 2) = (1 + 6 + 12 + 2).
%Y A166242
%K nonn
%O 1,2
%A _Gary W. Adamson_, Oct 13 2009
