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 A034247 #11 Jul 08 2025 20:13:16 %S A034247 0,23,1930906,36065804158,360865277628727,2729333815881686935, %T A034247 17273734529317171068203,95092594038536680078007672, %U A034247 464647323565599860735629425620,2042649271291756567720032041477070,8162854734704367418254962293756751587 %N A034247 Number of quaternary codes (not necessarily linear) of length n with 10 words. %H A034247 H. Fripertinger, <a href="http://www.mathe2.uni-bayreuth.de/frib/codes/tables.html">Isometry Classes of Codes</a> %H A034247 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 A034247 Cf. A034188-. %K A034247 nonn %O A034247 1,2 %A A034247 _N. J. A. Sloane_ %E A034247 a(10)-a(11) from _Sean A. Irvine_, Aug 09 2020