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 A217588 #26 Sep 08 2022 08:46:04 %S A217588 2521,7561,12601,15121,20161,30241,35281,42841,45361,47881,55441, %T A217588 65521,68041,78121,93241,100801,110881,126001,128521,131041,141121, %U A217588 146161,151201,156241,158761,161281,176401,178921,186481,196561,199081,206641,211681,229321 %N A217588 Primes of the form 2520k + 1 for some k. %H A217588 Vincenzo Librandi, <a href="/A217588/b217588.txt">Table of n, a(n) for n = 1..1000</a> %t A217588 Select[1 + 2520*Range[100], PrimeQ] (* _T. D. Noe_, Oct 10 2012 *) %o A217588 (Magma) [p: p in PrimesInInterval(2521,260000) | IsOne(p mod 2520)]; // _Bruno Berselli_, Oct 10 2012 %Y A217588 Subsequence of A217587. %K A217588 nonn,easy %O A217588 1,1 %A A217588 _Joshua S.M. Weiner_, Oct 07 2012