A135752 E.g.f.: A(x) = 1 + Sum_{n>=1} (1/n!)*Product_{k=1..n} [exp(kx) - 1].

1, 1, 3, 16, 129, 1436, 20853, 379716, 8421969, 222507532, 6879755613, 245389976756, 9977456650329, 457823345757948, 23505009169553733, 1340233911805244836, 84321693844646338209, 5820386696023034821484

Offset

0,3

Links

Vaclav Kotesovec, Table of n, a(n) for n = 0..180

Prog

(PARI) {a(n)=n!*polcoeff(1+sum(j=1, n, (1/j!)*prod(k=1, j, exp(k*x +x*O(x^n))-1)), n)}

Crossrefs

Sequence in context: A340341 A362661 A368791 * A218827 A120021 A223897

Adjacent sequences: A135749 A135750 A135751 * A135753 A135754 A135755

Keyword

nonn

Author

Paul D. Hanna, Nov 27 2007

Status

approved