OFFSET
0,3
COMMENTS
Sum_{k=1,2,...,n}:A060281(n,k)*k!
FORMULA
E.g.f.: 1/(1-log(1/(1-T(x)))) where T(x) is the e.g.f. for A000169.
a(n) ~ n! * exp((2*n*exp(1)-exp(1)-n)*exp(-1))/(exp(1)-1)^(n+1). - Vaclav Kotesovec, Sep 24 2013
MATHEMATICA
nn=20; t=Sum[n^(n-1)x^n/n!, {n, 1, nn}]; a=Log[1/(1-t)]; Range[0, nn]!CoefficientList[Series[1/(1-a), {x, 0, nn}], x]
CROSSREFS
KEYWORD
nonn
AUTHOR
Geoffrey Critzer, Mar 30 2012
STATUS
approved