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 A092228 #11 Feb 16 2025 08:32:52 %S A092228 42,158,233,274,390,466,506,622,699,738,854,932,970,1086,1165,1202, %T A092228 1318,1398,1434,1550,1631,1666,1782,1864,1898,2014,2097,2130,2246, %U A092228 2330,2362,2478,2563,2594,2710,2796,2826,2942,3029,3058,3174,3262,3290,3406,3495 %N A092228 Numbers k such that numerator of Bernoulli(2*k) is divisible by 233, the ninth irregular prime. %H A092228 Amiram Eldar, <a href="/A092228/b092228.txt">Table of n, a(n) for n = 1..1600</a> %H A092228 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/BernoulliNumber.html">Bernoulli Number</a>. %t A092228 Select[ Range[ 3521], Mod[ Numerator[ BernoulliB[2# ]], 233] == 0 &] %Y A092228 Cf. A000928, A091216, A092221, A092222, A092223, A092224, A092225, A092226, A092227, A092229. %K A092228 nonn %O A092228 1,1 %A A092228 _Robert G. Wilson v_, Feb 25 2004