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 A124215 #6 Jun 26 2022 05:55:20 %S A124215 1,2,14,166,2742,57734,1475078,44279414,1526285814,59383786278, %T A124215 2573408251366,122892818420310,6411057873364822,362707216829623046, %U A124215 22117095828202632262,1445932369337590029622,100884144820332079749302,7481824780607157773071590 %N A124215 E.g.f.: exp(exp(x)/(2-exp(3*x))^(1/3)-1). %C A124215 Exponential transform of A124214. %F A124215 a(n) ~ 3^(n + 1/8) * exp(4*n^(1/4) / (3^(3/4) * log(2)^(1/4)) - n - 1) * n^(n - 3/8) / (2*log(2)^(n + 1/8)). - _Vaclav Kotesovec_, Jun 26 2022 %Y A124215 Cf.: A124214. %K A124215 nonn %O A124215 0,2 %A A124215 _Karol A. Penson_, Oct 19 2006