OFFSET
1,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1).
FORMULA
a(n) = n*(n+1)*(12*n^2+8*n-5)/6.
G.f.: -x*(5+34*x+9*x^2) / (x-1)^5. - R. J. Mathar, Oct 08 2011
MAPLE
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved