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 A126300 #5 Mar 22 2016 06:06:29 %S A126300 0,1,47,443,653479,10269977 %N A126300 Fixed points of the permutation A125985/A125986. %C A126300 Those i, for which A125985(i)=i. A126301 shows the same fixed points using factorial code as employed in Vaillé's paper. %H A126300 J. Vaillé, <a href="http://dx.doi.org/10.1006/eujc.1996.0089">Une Bijection Explicative de Plusieurs Propriétés Remarquables des Ponts</a>, European J. Combin. 18 (1997), no. 1, 117-124. %Y A126300 Subset of A126298. Cf. A126295. A126311(n) = A071156(a(n)). %K A126300 nonn,hard,more %O A126300 0,3 %A A126300 _Antti Karttunen_, Jan 02 2007