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 A127442 Triangle read by rows: row n consists of 1 followed by initial n-1 terms of A127440. 1

%I

%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 = mu(n), 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 = (1, -2, 0, 1, -1, 2, -2, ...) = 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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Last modified August 1 03:05 EDT 2021. Contains 346379 sequences. (Running on oeis4.)