OFFSET
1,2
COMMENTS
FORMULA
Empirical g.f.: -x*(x^5+x^4+x^3-41*x^2-25*x-1) / (x^6-66*x^3+1). - Colin Barker, Jun 04 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Sep 21 2011
STATUS
approved