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%I #5 Feb 18 2022 22:18:45
%S 1,-1,0,-1,-1,0,0,0,0,0,-1,-1,-1,-1,0,1,0,0,0,1,0,-1,-1,-1,-1,-1,-1,0,
%T 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,1,0
%N Triangle read by rows: A128407 * A054521.
%C Row sums = A023900: (1, -1, -2, 0, -4, 2, -6, ...) Left border = mu(n), A008683.
%F A128407 * A054521 as infinite lower triangular matrices.
%e First few rows of the triangle:
%e 1;
%e -1, 0;
%e -1, -1, 0;
%e 0, 0, 0, 0;
%e -1, -1, -1, -1, 0;
%e 1, 0, 0, 0, 1, 0;
%e -1, -1, -1, -1, -1, -1, 0;
%e 0, 0, 0, 0, 0, 0, 0, 0;
%e ...
%Y Cf. A128407, A054521, A008683, A023900.
%K tabl,sign
%O 1,1
%A _Gary W. Adamson_, Mar 03 2007
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