The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A038875 Primes p with legendre(3,p) = -1. 4
 2, 5, 7, 17, 19, 29, 31, 41, 43, 53, 67, 79, 89, 101, 103, 113, 127, 137, 139, 149, 151, 163, 173, 197, 199, 211, 223, 233, 257, 269, 271, 281, 283, 293, 307, 317, 331, 353, 367, 379, 389, 401, 439, 449, 461, 463 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Apart from the first term, primes p such that 3 is not a square mod p. Apart from the first term, identical to A003630. LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA Select[Prime@Range[120], JacobiSymbol[3, #] == -1 &] (* Vincenzo Librandi, Sep 09 2012 *) CROSSREFS Cf. A040117, A003630. Sequence in context: A337986 A174281 A301916 * A019334 A045356 A158526 Adjacent sequences:  A038872 A038873 A038874 * A038876 A038877 A038878 KEYWORD nonn AUTHOR EXTENSIONS Edited by D. S. McNeil, R. J. Mathar and N. J. A. Sloane, Aug 15 2010 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 18 13:35 EDT 2021. Contains 345112 sequences. (Running on oeis4.)