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 A362275 #11 Apr 16 2023 01:33:20
%S A362275 1,1,-1,4,-3,-44,595,-5214,36953,-176840,-498969,31239550,-605916971,
%T A362275 9001842708,-110410388101,998140500826,-1114748107215,
%U A362275 -247879285927184,8410011463871695,-201620611378992906,4024515940445770541,-66832538504513547380
%N A362275 Expansion of e.g.f. exp(x*exp(-x*exp(-x))).
%H A362275 Winston de Greef, <a href="/A362275/b362275.txt">Table of n, a(n) for n = 0..460</a>
%F A362275 a(n) = Sum_{i=0..n} (-1)^(n-i) * binomial(n,i) * Sum_{j=0..n-i} i^j * j^(n-i-j) * binomial(n-i,j).
%o A362275 (PARI) my(N=30, x='x+O('x^N)); Vec(serlaplace(exp(x*exp(-x*exp(-x)))))
%Y A362275 Cf. A000949, A362273, A362274.
%Y A362275 Cf. A362247.
%K A362275 sign
%O A362275 0,4
%A A362275 _Seiichi Manyama_, Apr 13 2023