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 A351779 a(n) = n! * Sum_{k=0..n} (-n)^(n-k) * (n-k)^k/k!. 3
 1, -1, 4, -63, 2288, -138525, 12381084, -1528482823, 249005711296, -51739455340953, 13353206066063900, -4190486732316600771, 1571373340568392914288, -693899460077821703051125, 356404409990391961980227068, -210670220153918100996704166975 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..15. FORMULA a(n) = n! * [x^n] 1/(1 + n*x*exp(x)). PROG (PARI) a(n) = n!*sum(k=0, n, (-n)^(n-k)*(n-k)^k/k!); CROSSREFS Main diagonal of A351776. Cf. A351765, A351780. Sequence in context: A237644 A024256 A292394 * A203512 A354653 A213545 Adjacent sequences: A351776 A351777 A351778 * A351780 A351781 A351782 KEYWORD sign AUTHOR Seiichi Manyama, Feb 19 2022 STATUS approved

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Last modified May 23 06:14 EDT 2024. Contains 372760 sequences. (Running on oeis4.)