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%I #11 Sep 28 2022 11:00:23
%S 0,1,7,119,3186,117204,5493672,313159146,21032534856,1626654909168,
%T 142381874412000,13915051276560048,1501957674420194736,
%U 177456652252068578544,22779601954164759020184,3156967397734735846493880,469790199951668305705905408
%N E.g.f. satisfies A(x) = log(1 + x * exp(A(x))) * exp(3 * A(x)).
%H Seiichi Manyama, <a href="/A357351/b357351.txt">Table of n, a(n) for n = 0..324</a>
%F a(n) = Sum_{k=1..n} (n+3*k)^(k-1) * Stirling1(n,k).
%o (PARI) a(n) = sum(k=1, n, (n+3*k)^(k-1)*stirling(n, k, 1));
%Y Cf. A357349, A357350.
%K nonn
%O 0,3
%A _Seiichi Manyama_, Sep 25 2022
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