cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A141937 Primes congruent to 13 mod 25.

This page as a plain text file.
%I A141937 #14 Sep 08 2022 08:45:35
%S A141937 13,113,163,263,313,463,563,613,863,1013,1063,1163,1213,1613,1663,
%T A141937 1913,2063,2113,2213,2663,2713,2963,3163,3313,3413,3463,3613,3863,
%U A141937 4013,4363,4463,4513,4663,4813,5113,5413,5563,5813,6113,6163,6263,6563,6763,6863
%N A141937 Primes congruent to 13 mod 25.
%H A141937 Vincenzo Librandi, <a href="/A141937/b141937.txt">Table of n, a(n) for n = 1..1000</a>
%F A141937 a(n) ~ 20n log n. - _Charles R Greathouse IV_, Jul 02 2016
%t A141937 Select[Range[13, 20000, 25], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 15 2011 *)
%t A141937 Select[Prime[Range[1000]],Mod[#,25]==13&] (* _Harvey P. Dale_, May 30 2021 *)
%o A141937 (Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 13 ]; // _Vincenzo Librandi_, Aug 16 2012
%o A141937 (PARI) is(n)=isprime(n) && n%25==13 \\ _Charles R Greathouse IV_, Jul 02 2016
%Y A141937 Cf. A000040.
%K A141937 nonn,easy
%O A141937 1,1
%A A141937 _N. J. A. Sloane_, Jul 11 2008