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 A126311 #5 Mar 22 2016 05:33:34 %S A126311 0,1,327,13383,14107138025,4217868316383 %N A126311 A071156-codes for the fixed points of the permutation A125985/A125986. %C A126311 A126301 shows the same terms in factorial base notation. %H A126311 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. %F A126311 a(n) = A071156(A126300(n)) %Y A126311 Cf. A071156, A126300. %K A126311 nonn,hard,more %O A126311 0,3 %A A126311 _Antti Karttunen_, Jan 02 2007