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%I #12 Mar 13 2023 07:19:47
%S 1,1,-2,1,-2,0,1,-2,0,1,1,-2,0,1,-1,1,-2,0,1,-1,2,1,-2,0,1,-1,2,-2,1,
%T -2,0,1,-1,2,-2,1,1,-2,0,1,-1,2,-2,1,0,1,-2,0,1,-1,2,-2,1,0,1,1,-2,0,
%U 1,-1,2,-2,1,0,1,-2,1
%N Triangle read by rows: row n consists of 1 followed by initial n-1 terms of A127440.
%C Row sums give A008683.
%e Triangle begins:
%e 1
%e 1 -2,
%e 1 -2, 0,
%e 1 -2, 0, 1,
%e 1 -2, 0, 1, -1,
%e 1 -2, 0, 1, -1, 2,
%e 1 -2, 0, 1, -1, 2, -2,
%e 1 -2, 0, 1, -1, 2, -2, 1,
%e 1 -2, 0, 1, -1, 2, -2, 1, 0,
%e 1 -2, 0, 1, -1, 2, -2, 1, 0, 1,
%e 1 -2, 0, 1, -1, 2, -2, 1, 0, 1, -2,
%Y Cf. A127440 (first differences of mu(n), A008683).
%Y Cf. A008683.
%K tabl,sign
%O 1,3
%A _Gary W. Adamson_, Jan 14 2007
%E One term corrected by _T. D. Noe_, Feb 08 2007
%E Edited, corrected and extended by _N. J. A. Sloane_, Mar 01 2007
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