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 A208926 #14 Apr 06 2021 04:39:35 %S A208926 4,8,0,0,128,128,64,64,2816,0,0,51712,8192 %N A208926 Let L = A185064(n) be the n-th length for which a Golay sequence exists; a(n) = number of non-constructable Golay sequences of length L. %H A208926 Dragomir Z. Dokovic, <a href="http://dx.doi.org/10.1016/S0012-365X(98)00034-X">Equivalence classes and representatives of Golay sequences</a>, Discrete Math. 189 (1998), no. 1-3, 79-93. MR1637705 (99j:94031). %Y A208926 Cf. A185064, A208924, A208925, A208927, A208928, A208929. %K A208926 nonn,more %O A208926 1,1 %A A208926 _N. J. A. Sloane_, Mar 03 2012 %E A208926 a(11)-a(13) from _Vincenzo Librandi_, Nov 26 2020