OFFSET
3,1
LINKS
Alois P. Heinz, Table of n, a(n) for n = 3..1000
FORMULA
E.g.f.: x^3/3! * Sum_{j=0..3} Stirling2(3,j)*exp(x)^j.
a(n) = C(n,3) * Sum_{j=0..3} Stirling2(3,j) * j^(n-3).
MAPLE
a:= n-> binomial(n, 3)*add(Stirling2(3, j)*j^(n-3), j=0..3):
seq(a(n), n=3..40);
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, May 27 2016
STATUS
approved