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%I #9 Jan 22 2020 15:08:52

%S 1,1,1,0,2,2,0,0,4,4,0,0,0,8,8,0,0,0,0,16,16,0,0,0,0,0,32,32,0,0,0,0,

%T 0,0,64,64

%N A134309 * A097806.

%C A134315 * [1,2,3,...] = A128135: (1, 3, 10 28, 72, 176, 416, ...).

%C Triangle read by rows given by [1,-1,0,0,0,0,0,0,...] DELTA [1,1,0,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938. - _Philippe Deléham_, Oct 20 2007

%F A134309 * A134315 as infinite lower triangular matrices. Triangle read by rows, for n>1, (n-1) zeros followed by 2^(n-1), 2^(n-1). As an infinite lower triangular matrix, (1, 1, 2, 4, 8, ...) in the main diagonal and (1, 2, 4, 8, ...) in the subdiagonal.

%F G.f.: (-1-x+x*y)/(-1+2*x*y). - _R. J. Mathar_, Aug 11 2015

%e First few rows of the triangle are:

%e 1;

%e 1, 1;

%e 0, 2, 2;

%e 0, 0, 4, 4;

%e 0, 0, 0, 8, 8;

%e ...

%Y Cf. A134309, A097806, A128135.

%K nonn,tabl,easy

%O 1,5

%A _Gary W. Adamson_, Oct 19 2007