OFFSET
0,1
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
FORMULA
G.f.: (2-7*x+35*x^2+25*x^3+63*x^4+2*x^5)/(1-x)^7. - R. J. Mathar, Nov 14 2007 (Minor edits from Jaume Oliver Lafont, Sep 30 2009)
MATHEMATICA
Table[(n^1 + 1!)*(n^2 + 2!)*(n^3 + 3!)/3!, {n, 0, 50}] (* G. C. Greubel, Feb 21 2017 *)
PROG
(PARI) x='x+O('x^50); Vec((2-7*x+35*x^2+25*x^3+63*x^4+2*x^5)/(1-x)^7) \\ G. C. Greubel, Feb 21 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Alexander R. Povolotsky, Aug 29 2007
STATUS
approved