cp's OEIS Frontend

A306578 a(n) = n! * [x^n] A_n(x) with A_n(x) = exp(x*A_n(((x+1)^n-1)/n)) if n > 0 and A_0(x) = exp(x).

%I A306578 #8 Feb 24 2019 17:06:30
%S A306578 1,1,3,22,329,9216,443227,33690574,3815631297,615764308672,
%T A306578 136379590946891,40153740607226214,15306924742075555657,
%U A306578 7392759013812560317840,4441824191762733091989051,3268365147290283563408293846,2905065653907985007147484366113
%N A306578 a(n) = n! * [x^n] A_n(x) with A_n(x) = exp(x*A_n(((x+1)^n-1)/n)) if n > 0 and A_0(x) = exp(x).
%H A306578 Alois P. Heinz, <a href="/A306578/b306578.txt">Table of n, a(n) for n = 0..100</a>
%F A306578 a(n) = A143632(n,n).
%Y A306578 Main diagonal of A143632.
%K A306578 nonn
%O A306578 0,3
%A A306578 _Alois P. Heinz_, Feb 24 2019