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 A293918 #6 Oct 25 2017 18:07:19 %S A293918 1,39,796,14296,265103,5317342,116235247,2760729582,70870525294, %T A293918 1956309944351,57803029075220,1820704829013410,60915564036123607, %U A293918 2157741151756229543,80681075613289079236,3176017007139110899224,131302895736890434892224,5688257327967598478393309 %N A293918 Number of linear chord diagrams having n chords and minimal chord length five. %H A293918 Alois P. Heinz, <a href="/A293918/b293918.txt">Table of n, a(n) for n = 5..404</a> %F A293918 a(n) ~ (exp(-4) - exp(-5)) * 2^(n + 1/2) * n^n / exp(n). - _Vaclav Kotesovec_, Oct 25 2017 %Y A293918 Column k=5 of A293881. %K A293918 nonn %O A293918 5,2 %A A293918 _Alois P. Heinz_, Oct 19 2017