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URL: https://oeis.org/A100889

⇱ A100889 - OEIS

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A100889
Real part of the multiplier m of the multiperfect Gaussian integer A100884(n)+i*A100885(n).
8
1, 2, -1, 2, -1, 2, -2, 1, -1, 0, -3, 1, -3, 0, -2, -4, -3, 1, -4, 2, 0, 3, 0, 1, 3, 3, 4, 3, 0, -1, 0, 5, 3, -5, 4, 0, 4, 0, 0, 0, -4
OFFSET
1,2
COMMENTS
Let the Gaussian integer z = A100884(n)+i*A100885(n). Then a(n) = Re(m) = Re( sigma(z)/z) .
CROSSREFS
KEYWORD
sign,more
EXTENSIONS
Edited, all values replaced by R. J. Mathar, Mar 12 2010
a(10)-a(41) from Amiram Eldar, Feb 10 2020
STATUS
approved