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 A001012 #10 Jan 23 2020 16:29:16 %S A001012 1,1,1,1,2,2,22,563,1676257 %N A001012 Erroneous version of A040082. %H A001012 J. W. Brown, <a href="http://dx.doi.org/10.1016/S0021-9800(68)80053-5">Enumeration of Latin squares with application to order 8</a>, J. Combin. Theory, 5 (1968), 177-184. [a(7) and a(8) appear to be given incorrectly. - _N. J. A. Sloane_, Jan 23 2020] %K A001012 dead %O A001012 0,5