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A011631 Legendre symbol (n,251). 1
0, 1, -1, 1, 1, 1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, 1, 1, -1, -1, 1, 1, 1, 1, -1, 1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, 1, -1, 1, 1, -1, 1, -1, -1, -1, 1, -1, -1, 1, 1, -1, 1, 1, -1, -1, -1, -1, -1, 1, -1, 1, -1, -1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, 1, 1, -1, -1, -1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

G. H. Hardy and E. M. Wright, An Introduction to the Theory of Numbers. 3rd ed., Oxford Univ. Press, 1954, p. 68.

LINKS

Table of n, a(n) for n=0..80.

CROSSREFS

Sequence in context: A011628 A011629 A011630 * A165591 A165471 A165481

Adjacent sequences:  A011628 A011629 A011630 * A011632 A011633 A011634

KEYWORD

sign,mult

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 30 19:02 EST 2021. Contains 349424 sequences. (Running on oeis4.)