OFFSET
3,2
FORMULA
Empirical (for n>=7): a(n) = 80*n^6/9 - 401*n^5/3 + 10112*n^4/9 - 5809*n^3 + 145814*n^2/9 - 64942*n/3 + 11612. - Vaclav Kotesovec, Nov 30 2012
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 14 2009
STATUS
approved