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 A361090 #14 Mar 15 2023 11:11:34
%S A361090 1,1,3,7,-11,-239,-179,24991,192025,-3955391,-89483399,552615031,
%T A361090 46231717621,254468241457,-26683006147979,-571848064714289,
%U A361090 14926049610344881,825004339886219521,-2973711136010539535,-1134313888244827421465,-17734152216328857754739
%N A361090 E.g.f. satisfies A(x) = exp( x/(1 - x/A(x)) ).
%H A361090 Winston de Greef, <a href="/A361090/b361090.txt">Table of n, a(n) for n = 0..399</a>
%F A361090 a(n) = n! * Sum_{k=1..n} (-n+k+1)^(k-1) * binomial(n-1,n-k)/k! for n>0.
%o A361090 (PARI) a(n) = if(n==0, 1, n!*sum(k=1, n, (-n+k+1)^(k-1)*binomial(n-1, n-k)/k!));
%Y A361090 Cf. A161630, A212722, A212917, A361091, A361092.
%Y A361090 Cf. A361067, A361095.
%K A361090 sign
%O A361090 0,3
%A A361090 _Seiichi Manyama_, Mar 01 2023