A038887 - OEIS

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A038887

15 is a square mod p.

2, 3, 5, 7, 11, 17, 43, 53, 59, 61, 67, 71, 103, 109, 113, 127, 131, 137, 163, 173, 179, 181, 191, 197, 223, 229, 233, 239, 241, 251, 257, 283, 293, 307, 311, 317, 349, 353, 359, 367, 409, 419, 421, 431, 463, 479

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OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Prime[Range[100]], JacobiSymbol[15, #] != -1 &] (* Vincenzo Librandi, Sep 07 2012 *)

CROSSREFS

Sequence in context: A068868 A127435 A257110 * A178991 A240566 A067904

Adjacent sequences: A038884 A038885 A038886 * A038888 A038889 A038890

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved