A011582 Legendre symbol (n,11).

0, 1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 0, 1, -1, 1, 1, 1, -1, -1, -1, 1, -1, 0, 1, -1, 1

Offset: 0

Author

N. J. A. Sloane

Keywords

• sign
• mult
• easy

References

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

Links

• Index entries for linear recurrences with constant coefficients, signature (-1,-1,-1,-1,-1,-1,-1,-1,-1,-1).

Programs

Mathematica

Table[JacobiSymbol[n, 11], {n, 0, 80}] (* Jean-François Alcover, May 17 2017 *)

PARI

A011582(n) = kronecker(n,11);
for(n=0, 20, print1(A011582(n)", ")); /* R. J. Mathar, Feb 25 2012 */