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A357351
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E.g.f. satisfies A(x) = log(1 + x * exp(A(x))) * exp(3 * A(x)).
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4
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0, 1, 7, 119, 3186, 117204, 5493672, 313159146, 21032534856, 1626654909168, 142381874412000, 13915051276560048, 1501957674420194736, 177456652252068578544, 22779601954164759020184, 3156967397734735846493880, 469790199951668305705905408
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OFFSET
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0,3
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LINKS
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FORMULA
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a(n) = Sum_{k=1..n} (n+3*k)^(k-1) * Stirling1(n,k).
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PROG
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(PARI) a(n) = sum(k=1, n, (n+3*k)^(k-1)*stirling(n, k, 1));
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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