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A077010 Jacobi symbol(sigma(2n+1),2n+1). 0
1, 1, 1, 1, 1, 1, 1, 0, 1, 1, -1, 1, 1, 1, 1, 1, 0, 1, 1, -1, 1, 1, 0, 1, 1, 0, 1, 1, -1, 1, 1, -1, -1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, -1, 0, 1, 0, 1, 1, 0, 1, 1, -1, 1, 1, 0, 1, 1, 0, 1, 1, -1, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, -1, 1, 0, 1, 1, -1, 1, -1, 0, 1, 1, -1, 1, 1, 1, 1, 1, 0, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Jacobi symbol(n,m) is defined only for (positive) odd numbers m.

LINKS

Table of n, a(n) for n=0..99.

MATHEMATICA

Table[JacobiSymbol[DivisorSigma[1, 2 j + 1], 2 j + 1], {j, 0, 99}]

CROSSREFS

Sequence in context: A129667 A071374 A071025 * A225817 A248863 A267256

Adjacent sequences:  A077007 A077008 A077009 * A077011 A077012 A077013

KEYWORD

sign

AUTHOR

Joseph L. Pe, Nov 28 2002

STATUS

approved

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Last modified September 17 10:52 EDT 2019. Contains 327129 sequences. (Running on oeis4.)