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 A246225 #8 Jan 12 2015 09:44:51 %S A246225 26546042,0,0,222237912664,0,0,902675188454625274,523709583562561554, %T A246225 4019286730558350,0,380750072712510202319,378380322018952109375, %U A246225 6458041428528147414728302,18033623516991092062500,51609923138804798955087048,809786012867038620000000 %N A246225 Number of permutations of [n] with exactly five (possibly overlapping) occurrences of the consecutive step pattern given by the binary expansion of n, where 1=up and 0=down. %H A246225 Alois P. Heinz, <a href="/A246225/b246225.txt">Table of n, a(n) for n = 15..130</a> %Y A246225 Column k=5 of A242783. %K A246225 nonn %O A246225 15,1 %A A246225 _Alois P. Heinz_, Aug 19 2014