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 A213162 #13 Jan 11 2023 05:12:07 %S A213162 2,199,409,17569,981091,3918251,1329433951,75902670689,45048280453021 %N A213162 Smallest prime p such that (k+1)*p^2-k are prime for k=1..n. %C A213162 a(1..8) are the first terms correspondingly in A106483, A213078, A213079, A213107, A213125, A213159, A213161, A213334. %o A213162 (PARI) a(n) = {my(p = 2); until (ok, ok = 1; for (k = 1, n, if (! isprime((k+1)*p^2-k), ok = 0; break;);); if (!ok, p = nextprime(p+1);)); return (p);} \\ _Michel Marcus_, Apr 19 2013 %K A213162 nonn,more %O A213162 1,1 %A A213162 _Zak Seidov_, Jun 06 2012 %E A213162 a(9) from _Tyler Busby_, Jan 11 2023