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 A250218 #20 Dec 17 2022 08:25:00 %S A250218 3,5,6,10,22,61,85,86,268,304,606,808,2706,3771,5047,6288,6298,7631, %T A250218 7643,14683,27620 %N A250218 Record values in A085398. %Y A250218 Cf. A085398, A250217. %K A250218 nonn,more %O A250218 1,1 %A A250218 _Eric Chen_, Dec 24 2014 %E A250218 Corrected by the insertion of 808. - _Robert G. Wilson v_, May 19 2017 %E A250218 a(17)-a(21) from _Jinyuan Wang_, Dec 17 2022