OFFSET
3,1
FORMULA
E.g.f.: x^3/((1-x)^2*e^x)
MAPLE
a:=n->sum(n!*sum((-1)^k/k!, j=0..n), k=0..n): seq(a(n)*n, n=2..17); # Zerinvary Lajos, Dec 18 2007
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Christian G. Bower from a sequence by Erich Friedman
STATUS
approved