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%I #5 Feb 18 2022 22:07:03
%S 1,1,1,0,0,1,0,0,0,1,0,0,-1,0,1,0,0,1,-1,0,1,0,0,0,0,-1,0,1,0,0,-1,1,
%T 0,-1,0,1,0,0,1,0,0,0,-1,0,1,0,0,0,-1,1,0,0,-1,0,1
%N Inverse of A128189.
%C Row sums = 1, 2, 1, 1, 0, 1, 0, 0, 1, 0, ... (the first 10 terms of A104162).
%F Inverse of A128189 as an infinite lower triangular matrix.
%e First few rows of the triangle:
%e 1;
%e 1, 1;
%e 0, 0, 1;
%e 0, 0, 0, 1;
%e 0, 0, -1, 0, 1;
%e 0, 0, 1, -1, 0, 1;
%e ...
%Y Cf. A104162, A128189.
%K tabl,sign
%O 0,1
%A _Gary W. Adamson_, Feb 17 2007
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