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 A034223 #12 Jul 08 2025 20:10:34 %S A034223 1,4,10,20,35,57,87,127,179,245,327,428,550,696,869 %N A034223 Number of ternary codes (not necessarily linear) of length n with 3 words. %H A034223 H. Fripertinger, <a href="http://www.mathe2.uni-bayreuth.de/frib/codes/tables.html">Isometry Classes of Codes</a> %H A034223 H. Fripertinger, <a href="https://doi.org/10.1023/A:1008248618779">Enumeration, construction and random generation of block codes</a>, Designs, Codes, Crypt., 14 (1998), 213-219. %Y A034223 Cf. A034188-. %K A034223 nonn,more %O A034223 1,2 %A A034223 _N. J. A. Sloane_ %E A034223 a(11)-a(15) from _Sean A. Irvine_, Aug 07 2020