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.
%I A045380 #20 Sep 08 2022 08:44:55 %S A045380 2,7,17,37,47,67,97,107,127,137,157,167,197,227,257,277,307,317,337, %T A045380 347,367,397,457,467,487,547,557,577,587,607,617,647,677,727,757,787, %U A045380 797,827,857,877,887,907,937,947,967,977,997,1087,1097,1117,1187,1217,1237 %N A045380 Primes congruent to 2 mod 5. %H A045380 Vincenzo Librandi, <a href="/A045380/b045380.txt">Table of n, a(n) for n = 1..1000</a> %t A045380 Select[Prime@Range[210], Mod[ #, 5] == 2 &] (* _Ray Chandler_, Dec 06 2006 *) %t A045380 Select[Range[2,1300,5],PrimeQ] (* _Harvey P. Dale_, Jul 22 2020 *) %o A045380 (Magma) [p: p in PrimesUpTo(1300) | p mod 5 eq 2]; // _Vincenzo Librandi_, Aug 07 2012 %o A045380 (PARI) is(n)=isprime(n) && n%5==2 \\ _Charles R Greathouse IV_, Jul 01 2016 %Y A045380 Apart from the initial terms, essentially same as A030432 and A045357. Cf. A095022. %K A045380 nonn,easy %O A045380 1,1 %A A045380 _N. J. A. Sloane_