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 A127442 Triangle read by rows: row n consists of 1 followed by initial n-1 terms of A127440. 1
 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, -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, 1, -1, 2, -2, 1, 0, 1, -2, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Row sums = mu(n), A008683. LINKS EXAMPLE Triangle begins: 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 -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, 1, -1, 2, -2, 1, 0, 1, -2, CROSSREFS Cf. A127440 = (1, -2, 0, 1, -1, 2, -2, ...) = first differences of mu(n), A008683 Cf. A008683. Sequence in context: A057985 A135387 A321104 * A115628 A114002 A114004 Adjacent sequences:  A127439 A127440 A127441 * A127443 A127444 A127445 KEYWORD tabl,sign AUTHOR Gary W. Adamson, Jan 14 2007 EXTENSIONS One term corrected by T. D. Noe, Feb 08 2007 Edited, corrected and extended by N. J. A. Sloane, Mar 01 2007 STATUS approved

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Last modified June 16 16:09 EDT 2021. Contains 345063 sequences. (Running on oeis4.)