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A152904 Triangle read by rows: T(n,k) = A008683(n-k+1); 1<=k<=n; mu(n) "decrescendo". 1

%I #15 Apr 02 2019 05:42:25

%S 1,-1,1,-1,-1,1,0,-1,-1,1,-1,0,-1,-1,1,1,-1,0,-1,-1,1,-1,1,-1,0,-1,-1,

%T 1,0,-1,1,-1,0,-1,-1,1,0,0,-1,1,-1,0,-1,-1,1,1,0,0,-1,1,-1,0,-1,-1,1,

%U -1,1,0,0,-1,1,-1,0,-1,-1,1

%N Triangle read by rows: T(n,k) = A008683(n-k+1); 1<=k<=n; mu(n) "decrescendo".

%H E. Deutsch, L. Ferrari and S. Rinaldi, <a href="https://doi.org/10.1016/j.aam.2004.05.002">Production Matrices</a>, Advances in Applied Mathematics, 34 (2005) pp. 101-122.

%F Triangle read by rows, T(n,k) = A008683(n-k+1) = A008683 in every column = A008683 "decrescendo"d by rows.

%e Triangle begins

%e 1;

%e -1, 1;

%e -1, -1, 1;

%e 0, -1, -1, 1;

%e -1, 0, -1, -1, 1;

%e 1, -1, 0, -1, -1, 1;

%e -1, 1, -1, 0, -1, -1, 1;

%e 0, -1, 1, -1, 0, -1, -1, 1;

%e 0, 0, -1, 1, -1, 0, -1, -1, 1;

%e ...

%e Production matrix begins

%e -1, 1,

%e -2, 0, 1,

%e -3, 0, 0, 1,

%e -6, 0, 0, 0, 1,

%e -9, 0, 0, 0, 0, 1,

%e -17, 0, 0, 0, 0, 0, 1,

%e -28, 0, 0, 0, 0, 0, 0, 1,

%e -50, 0, 0, 0, 0, 0, 0, 0, 1,

%e -83, 0, 0, 0, 0, 0, 0, 0, 0, 1,

%e -147, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 ...

%e where first column is -A073776(n+1). - _Paul Barry_, Feb 10 2011

%Y Cf. A008683, A002321, A073776, A152901, A152902.

%Y Row sums = A002321, the Mertens function. A185694 is an eigensequence.

%K tabl,sign

%O 1,1

%A _Gary W. Adamson_, Dec 14 2008

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Last modified April 16 17:36 EDT 2024. Contains 371749 sequences. (Running on oeis4.)