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 A034197 #16 Jul 08 2025 20:07:13 %S A034197 1,1,12,89,2681,158374,22151853,5244256701,1653293013642, %T A034197 584494025830394,210237300968913438,73212582945836596465, %U A034197 24126483152959778734211,7456837714994642537616273 %N A034197 Number of binary codes of length 12 with n words. %C A034197 Last term is a(2^12) = 1. - _Sean A. Irvine_, Aug 07 2020 %H A034197 H. Fripertinger, <a href="http://www.mathe2.uni-bayreuth.de/frib/codes/tables.html">Isometry Classes of Codes</a> %H A034197 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 A034197 Cf. A034188, A034189, A034190, A034191, A034192, A034193, A034194, A034195, A034196. %K A034197 nonn,fini %O A034197 0,3 %A A034197 _N. J. A. Sloane_