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 A361096 #12 Mar 15 2023 11:11:37 %S A361096 1,1,-1,1,17,-339,4999,-63587,566145,3549241,-405637489,15518099961, %T A361096 -446235202799,9617693853925,-75522664207017,-7341781870733099, %U A361096 596513949276803969,-30104875035438797583,1144712508931072057375,-27381639204739332379151 %N A361096 E.g.f. satisfies A(x) = exp( 1/(1 - x/A(x)^2) - 1 ). %H A361096 Winston de Greef, <a href="/A361096/b361096.txt">Table of n, a(n) for n = 0..385</a> %F A361096 a(n) = n! * Sum_{k=0..n} (-2*n+1)^(k-1) * binomial(n-1,n-k)/k!. %o A361096 (PARI) a(n) = n!*sum(k=0, n, (-2*n+1)^(k-1)*binomial(n-1, n-k)/k!); %Y A361096 Cf. A052873, A361093, A361094, A361095, A361097. %K A361096 sign %O A361096 0,5 %A A361096 _Seiichi Manyama_, Mar 01 2023