A034242 - OEIS

%I #9 Aug 09 2020 07:27:41

%S 0,13,254,3227,32970,292103,2303283,16388502,106287822,633822588,

%T 3502418937,18058528687

%N Number of quaternary codes (not necessarily linear) of length n with 5 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,more

%O 1,2

%A _N. J. A. Sloane_.

%E a(10)-a(12) from _Sean A. Irvine_, Aug 09 2020