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Search: id:A143519
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| 0, 1, 1, -1, 1, -2, 1, 0, -1, -2, 1, 1, 1, -2, -2, 0, 1, 1, 1, 1, -2, -2, 1, 0, -1, -2, 0, 1, 1, 3, 1, 0, -2, -2, -2, 0, 1, -2, -2, 0, 1, 3, 1, 1, 1, -2, 1, 0, -1, 1, -2, 1, 1, 0, -2, 0, -2, -2, 1, -1, 1, -2, 1, 0, -2, 3, 1, 1, -2, 3, 1, 0, 1, -2, 1, 1, -2, 3, 1, 0, 0, -2, 1, -1, -2, -2, -2, 0, 1
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OFFSET
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1,6
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COMMENT
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A010051 = A051731 * A143519 (since A051731 = the inverse Mobius transform).
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FORMULA
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Mobius transform of A010051, the characteristic function of the primes. Row sums of triangle A143518
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EXAMPLE
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a(4) = -1 since row 4 of triangle A043518 = (0, -1, 0, 0).
a(4) = -1 = (0, -1, 0, 1) dot (0, 1, 1, 0), where (0, -1, 0, 1) = row 4 of A054525 and A010051 = (0, 1, 1, 0, 1, 0, 1, 0,...).
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CROSSREFS
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Cf. A010051, A143518, A054525.
Sequence in context: A096875 A094713 A123517 this_sequence A029376 A029359 A038698
Adjacent sequences: A143516 A143517 A143518 this_sequence A143520 A143521 A143522
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KEYWORD
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sign
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 22 2008
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 19 2009
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