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 A246226 #8 Jan 12 2015 09:46:25 %S A246226 2340699,0,0,0,0,0,264152543774143518,12327936260780536,0,0,0,0, %T A246226 672873380447205487461117,0,340824919595050237301116,0, %U A246226 5490319613423481676641190699,0,10557477888680231517368491,44567941059064479980820469827072,21711236330372841724318248158224 %N A246226 Number of permutations of [n] with exactly six (possibly overlapping) occurrences of the consecutive step pattern given by the binary expansion of n, where 1=up and 0=down. %H A246226 Alois P. Heinz, <a href="/A246226/b246226.txt">Table of n, a(n) for n = 15..130</a> %Y A246226 Column k=6 of A242783. %K A246226 nonn %O A246226 15,1 %A A246226 _Alois P. Heinz_, Aug 19 2014