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 A293922 #6 Oct 25 2017 18:06:26 %S A293922 1,639,69676,4100988,184283856,7306919616,275875184700,10345618038532, %T A293922 394140369614751,15439822086531614,625906719760828175, %U A293922 26339564820084748490,1152078058596976970932,52386933718575091061064,2475581777015155231108104,121493777824620584462513636 %N A293922 Number of linear chord diagrams having n chords and minimal chord length nine. %H A293922 Alois P. Heinz, <a href="/A293922/b293922.txt">Table of n, a(n) for n = 9..200</a> %F A293922 a(n) ~ (exp(-8) - exp(-9)) * 2^(n + 1/2) * n^n / exp(n). - _Vaclav Kotesovec_, Oct 25 2017 %Y A293922 Column k=9 of A293881. %K A293922 nonn %O A293922 9,2 %A A293922 _Alois P. Heinz_, Oct 19 2017