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 A130145 #28 Jul 14 2022 22:54:54 %S A130145 1,3,7,15,28,48,79,123,184,268,379,523,709,943,1234,1594,2032,2560, %T A130145 3194,3946,4832,5872,7082,8482,10097 %N A130145 Number of nonisomorphic orthogonal arrays OA(8*n+4,4,2,2). %C A130145 Conjecture: partial sums of A115266. - _Sean A. Irvine_, Jul 14 2022 %H A130145 John Stufken and Boxin Tang, <a href="http://arxiv.org/abs/0708.1908">Complete enumeration of two-Level orthogonal arrays of strength d with d+2 constraints</a>, arXiv:0708.1908 [math.ST], 2007. %F A130145 Empirical g.f.: x / ((x-1)^6*(x+1)*(x^2+x+1)^2). - _Colin Barker_, Aug 01 2013 %Y A130145 Cf. A048885. %K A130145 nonn,more %O A130145 1,2 %A A130145 _Jonathan Vos Post_, Aug 15 2007 %E A130145 Name clarified by _Andrey Zabolotskiy_, Sep 22 2021