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Number of binary codes of length 12 with n words.
10

%I #14 Aug 08 2020 01:30:30

%S 1,1,12,89,2681,158374,22151853,5244256701,1653293013642,

%T 584494025830394,210237300968913438,73212582945836596465,

%U 24126483152959778734211,7456837714994642537616273

%N Number of binary codes of length 12 with n words.

%C Last term is a(2^12) = 1. - _Sean A. Irvine_, Aug 07 2020

%H H. Fripertinger, <a href="http://www.mathe2.uni-bayreuth.de/frib/codes/tables.html">Isometry Classes of Codes</a>

%H 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 Cf. A034188, A034189, A034190, A034191, A034192, A034193, A034194, A034195, A034196.

%K nonn,fini

%O 0,3

%A _N. J. A. Sloane_.