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Number of quaternary codes (not necessarily linear) of length n with 15 words.
0

%I #8 Aug 09 2020 17:11:44

%S 0,1,1934022164,84132279974374399,1031480539243199520034660,

%T 8310809015721735456185639217040,

%U 54158497721151149425654087606674852696,304390060432492084012377982122567201961380857,1515225779420036030072761808322973017812564229108068

%N Number of quaternary codes (not necessarily linear) of length n with 15 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 1,3

%A _N. J. A. Sloane_.

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