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 A197926 #8 Feb 16 2025 08:33:15 %S A197926 1,2,4,10,18,142,202,282,528,812,1240,1280,1372,1454,1488,1666 %N A197926 Numbers n such that A055265(1..n) is a solution of prime circle problem. %C A197926 Subsequence of A070942. %H A197926 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PrimeCircle.html">Prime Circle</a> %Y A197926 Cf. A055265, A070942. %K A197926 nonn %O A197926 1,2 %A A197926 _Zak Seidov_, Oct 19 2011