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 A199008 #13 Dec 17 2016 12:17:29
%S A199008 6,25,196,972,9680
%N A199008 Number of cocyclic matrices D_{2n+2} of order 2n+2 with maximal determinant.
%H A199008 V. Alvarez, J. A. Armario, M. D. Frau and F. Gudiel, <a href="http://dx.doi.org/10.1016/j.laa.2011.05.018">The maximal determinant of cocyclic (-1, 1)-matrices over D_{2t}</a>, Linear Algebra and its Applications, 2011.
%Y A199008 Cf. A199005, A199007.
%K A199008 nonn,more
%O A199008 2,1
%A A199008 _N. J. A. Sloane_, Nov 01 2011