OFFSET
4,1
LINKS
R. H. Hardin, Table of n, a(n) for n=4..30
FORMULA
Empirical G.f.: -17*x^3 - x^3*(17 - 140*x + 3718*x^2 + 90453*x^3 + 347157*x^4 + 218190*x^5 - 9588*x^6 - 3511*x^7 + 224*x^8)/(-1+x)^9. - Vaclav Kotesovec, Nov 30 2012
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 11 2009
STATUS
approved