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 A271796 #4 Apr 15 2016 10:42:04 %S A271796 0,1,55,1505,29324,470327,6695470,88385973,1111798442,13564841773, %T A271796 162467818939,1926323411088,22746380908378,268674567620291, %U A271796 3184862187668777,37981401796219812,456537084216273054,5538881542974933954,67901571491109849536,841799517686212572527 %N A271796 Number of set partitions of [n] having exactly nine pairs (m,m+1) such that m is in some block b and m+1 is in block b+1. %H A271796 Alois P. Heinz, <a href="/A271796/b271796.txt">Table of n, a(n) for n = 9..300</a> %Y A271796 Column k=9 of A185982. %K A271796 nonn %O A271796 9,3 %A A271796 _Alois P. Heinz_, Apr 14 2016