OFFSET
0,2
FORMULA
a(n)=A112007(n+3, 3), n>=0.
a(n)= (n+7)*a(n-1) + (n+1)*A002539(n+1), n>=1, a(0)=1.
Contribution from Johannes W. Meijer, Oct 16 2009: (Start)
a(n) = sum((-1)^(n+k)*binomial(2*n+9,k)*stirling1(n-k+8,4-k), k=0..3)
(End)
EXAMPLE
1452= a(2) = 9*52 + 3*328.
CROSSREFS
Contribution from Johannes W. Meijer, Oct 16 2009: (Start)
Equals fourth left hand column of A163936.
(End)
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Sep 12 2005
STATUS
approved