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 A264606 #10 Nov 24 2015 17:02:54 %S A264606 4,4,8,8,4,64,8,32,64,4,8,8,1024,64,8,32,1024,64,8,8,4,64,512,32,64, %T A264606 1024,2048,8,64,64,8,32,1024,1024,8,512,64,64,8,8192,64,4,32768,128, %U A264606 1024,262144,8,8192,1024,64,512,8,1024,4194304,8,8192,64,64,8,2147483648,64,64,512,32,1024,262144 %N A264606 Number of self-dual negacyclic codes of length 2n over GF(9), where 2n runs through the numbers congruent to 2 or 4 mod 6 (cf. A047235). %H A264606 Amita Sahni and Poonam Trama Sehgal, <a href="http://dx.doi.org/10.3934/amc.2015.9.437">Enumeration of self-dual and self-orthogonal negacyclic codes over finite fields</a>, Advances in Mathematics of Communications, Volume 9, No. 4, 2015, 437-447. %Y A264606 Cf. A047235, A264605. %K A264606 nonn %O A264606 1,1 %A A264606 _N. J. A. Sloane_, Nov 24 2015