login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A038941
Primes p such that 61 is a square mod p.
3
3, 5, 13, 19, 41, 47, 61, 73, 83, 97, 103, 107, 109, 113, 127, 131, 137, 149, 163, 167, 179, 197, 199, 229, 239, 241, 257, 263, 269, 271, 283, 293, 317, 347, 353, 367, 379, 431, 439, 443, 449, 461, 463, 479, 487
OFFSET
1,1
COMMENTS
Also, primes p that are squares mod 61 (from the quadratic reciprocity law). - Lekraj Beedassy, Jul 13 2004
LINKS
MATHEMATICA
Select[Prime[Range[100]], ! JacobiSymbol[61, #] == -1 &] (* Vincenzo Librandi, Sep 08 2012 *)
CROSSREFS
Sequence in context: A238092 A024820 A360884 * A141215 A191039 A240278
KEYWORD
nonn
AUTHOR
STATUS
approved