%I #7 Mar 25 2022 02:29:47
%S 1,0,2,4,0,4,0,8,0,8,16,0,16,0,16,0,32,0,32,0,32,64,0,64,0,64,0,64,0,
%T 128,0,128,0,128,0,128,256,0,256,0,256,0,256,0,256,0,512,0,512,0,512,
%U 0,512,0,512
%N A130123 * A128174.
%C Row sums = A134353.
%F A130123 * A128174 as infinite lower triangular matrices.
%F Triangle read by rows: even n-th row = n+1 terms of (2^n, 0, 2^n, ...); odd n-th row = n+1 terms of (0, 2^n, 0, 2^n, ...).
%e First few rows of the triangle:
%e 1;
%e 0, 2;
%e 4, 0, 4;
%e 0, 8, 0, 8;
%e 16, 0, 16, 0, 16;
%e 0, 32, 0, 32, 0, 32;
%e ...
%Y Cf. A130123, A128174, A134353.
%K nonn,tabl
%O 0,3
%A _Gary W. Adamson_, Oct 21 2007