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A218497
5th iteration of the hyperbinomial transform on the sequence of 1's.
3
1, 6, 46, 441, 5156, 71801, 1166886, 21756251, 458803176, 10814534541, 282098765426, 8074875680471, 251807768368956, 8501320507058801, 309046115586282726, 12039399243732745851, 500492026353038459216, 22119195334250297991701, 1035767312348853244634586
OFFSET
0,2
COMMENTS
See A088956 for the definition of the hyperbinomial transform.
LINKS
FORMULA
E.g.f.: exp(x) * (-LambertW(-x)/x)^5.
a(n) = Sum_{j=0..n} 5 * (n-j+5)^(n-j-1) * C(n,j).
Hyperbinomial transform of A218496.
a(n) ~ 5*exp(5+exp(-1))*n^(n-1). - Vaclav Kotesovec, Oct 18 2013
MAPLE
a:= n-> add(5*(n-j+5)^(n-j-1)*binomial(n, j), j=0..n):
seq (a(n), n=0..20);
MATHEMATICA
Table[Sum[5*(n-j+5)^(n-j-1)*Binomial[n, j], {j, 0, n}], {n, 0, 20}] (* Vaclav Kotesovec, Oct 18 2013 *)
CROSSREFS
Column k=5 of A144303.
Sequence in context: A284109 A049378 A365056 * A261499 A001829 A006386
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Oct 30 2012
STATUS
approved