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A072035
Sum(binomial(n,k)*n^k*k^n,k=1..n).
0
1, 20, 954, 87824, 13277400, 2988592452, 937739606608, 391256502530112, 209506323336693120, 140051598716610088100, 114320471347170303646464, 111901561431908734444117392
OFFSET
1,2
FORMULA
a(n) ~ exp(1/exp(1)) * n^(2*n). - Vaclav Kotesovec, Jun 03 2013
MATHEMATICA
Table[Sum[Binomial[n, k]*n^k*k^n, {k, 1, n}], {n, 1, 20}] (* Vaclav Kotesovec, Jun 03 2013 *)
CROSSREFS
Sequence in context: A066802 A354814 A066798 * A269413 A274764 A069578
KEYWORD
nonn
AUTHOR
Karol A. Penson, Jun 07 2002
STATUS
approved