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A045355 Primes congruent to {2, 5, 7} mod 8. 7
2, 5, 7, 13, 23, 29, 31, 37, 47, 53, 61, 71, 79, 101, 103, 109, 127, 149, 151, 157, 167, 173, 181, 191, 197, 199, 223, 229, 239, 263, 269, 271, 277, 293, 311, 317, 349, 359, 367, 373, 383, 389, 397, 421, 431, 439 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Inert rational primes in the field Q(sqrt(-2)). - Eyal Gruss, Nov 30 2022
LINKS
Ray Chandler, Table of n, a(n) for n = 1..10000 (first 1000 terms from Vincenzo Librandi)
FORMULA
{2} UNION A003628. - R. J. Mathar, Sep 19 2012
MATHEMATICA
Select[Prime[Range[800]], MemberQ[{2, 5, 7}, Mod[#, 8]]&] (* Vincenzo Librandi, Aug 07 2012 *)
PROG
(Magma) [ p: p in PrimesUpTo(1000) | p mod 8 in {2, 5, 7} ]; // Vincenzo Librandi, Aug 07 2012
CROSSREFS
Cf. A000040.
Sequence in context: A334246 A275287 A261581 * A252281 A165319 A094712
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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Last modified May 30 14:34 EDT 2024. Contains 372968 sequences. (Running on oeis4.)