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 A224889 #36 Jan 13 2019 12:48:17 %S A224889 1,2,5,6,8,10,12,16,17,19,23,24,25,27,30,32,33,36,38,40,44,46,50,53, %T A224889 54,61,64,67,68,69,71,72,73,75,83,85,88,89,90,93,95,96,97,99,100,101, %U A224889 106,107,108,109,116,118,120,122,123,124,129,132,135,137,138,139 %N A224889 Numbers n such that 90n + 91 is prime. %C A224889 Equals A181732 - 1. %H A224889 Michael B. Porter, <a href="/A224889/b224889.txt">Table of n, a(n) for n = 1..10000</a> %t A224889 Select[Range[0, 400], PrimeQ[90# +91]&] %o A224889 (PARI) isA224889(n) = isprime(90*n + 91) \\ _Michael B. Porter_, Jul 28 2013 %K A224889 nonn,easy %O A224889 1,2 %A A224889 _J. W. Helkenberg_, Jul 24 2013