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 A143442 Triangle read by rows, A127648 * A000012 * A128407, 1 <= k <= n. 1
 1, 2, -2, 3, -3, -3, 4, -4, -4, 0, 5, -5, -5, 0, -5, 6, -6, -6, 0, -6, 6, 7, -7, -7, 0, -7, 7, -7, 8, -8, -8, 0, -8, 8, -8, 0, 9, -9, -9, 0, -9, 9, -9, 0, 0, 10, -10, -10, 0, -10, 10, -10, 0, 0, 10, 11, -11, -11, 0, -11, 11, -11, 0, 0, 11, -11 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums = A143443, n * (A002321, the Mertens function) = (1, 0, -3, -4, -10, -6, ...). Right border = n*mu(n). LINKS FORMULA Triangle read by rows, A127648 * A000012 * A128407, 1 <= k <= n; where A127648 = an infinite lower triangular matrix with (1, 2, 3, ...) in the main diagonal, the rest zeros. A128407 = diagonalized mu(n) matrix. EXAMPLE First few rows of the triangle = 1; 2, -2; 3, -3, -3; 4, -4, -4, 0; 5, -5, -5, 0, -5; 6, -6, -6, 0, -6, 6; 7, -7, -7, 0, -7, 7, -7; ... CROSSREFS Cf. A002321, A008683, A127648, A128407, A143443. Sequence in context: A179864 A070082 A085727 * A137300 A201052 A278044 Adjacent sequences:  A143439 A143440 A143441 * A143443 A143444 A143445 KEYWORD tabl,sign AUTHOR Gary W. Adamson, Aug 15 2008 STATUS approved

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Last modified January 26 20:11 EST 2020. Contains 331288 sequences. (Running on oeis4.)