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 A034243 #11 Jul 08 2025 20:12:49 %S A034243 0,23,1643,77194,2877651,90647411,2479201432,59893592245, %T A034243 1295484202258,25372355562592,454245432823858,7493960729135396 %N A034243 Number of quaternary codes (not necessarily linear) of length n with 6 words. %H A034243 H. Fripertinger, <a href="http://www.mathe2.uni-bayreuth.de/frib/codes/tables.html">Isometry Classes of Codes</a> %H A034243 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 A034243 Cf. A034188-. %K A034243 nonn,more %O A034243 1,2 %A A034243 _N. J. A. Sloane_ %E A034243 a(10)-a(12) from _Sean A. Irvine_, Aug 09 2020