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Number of quaternary codes (not necessarily linear) of length n with 12 words.
0

%I #8 Aug 09 2020 17:10:44

%S 0,10,40411006,16115614918786,2743732568913925577,

%T 335945077218184962957540,34003737003435994894150148682,

%U 2984588821879989225616325978449208,232335548668502380985795271986258349451,16268469921243333766692294351708903359498443

%N Number of quaternary codes (not necessarily linear) of length n with 12 words.

%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-.

%K nonn

%O 1,2

%A _N. J. A. Sloane_.

%E More terms from _Sean A. Irvine_, Aug 09 2020