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 A034213 #7 Jul 08 2025 20:09:09 %S A034213 0,0,0,0,133576,78409442414,5882732966056385,183113271146620771933, %T A034213 3633847025405824655962446,55450696349239278359106609324, %U A034213 712478090754344814381494318652666 %N A034213 Number of binary codes (not necessarily linear) of length n with 18 words. %D A034213 H. Fripertinger, Enumeration, construction and random generation of block codes, Designs, Codes, Crypt., 14 (1998), 213-219. %H A034213 H. Fripertinger, <a href="http://www.mathe2.uni-bayreuth.de/frib/codes/tables.html">Isometry Classes of Codes</a> %Y A034213 Cf. A034188-. %K A034213 nonn %O A034213 1,5 %A A034213 _N. J. A. Sloane_