OFFSET
4,1
REFERENCES
Nicholas S. Horne, Analysis of Viable Network Configurations from a Combinatorial, Graphical and Algebraic Perspective, Diss. Providence College, 2004.
LINKS
Index entries for linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).
FORMULA
a(n) = n*(n-1)*(n-2)*(n-3)*(n^4+2*n^3-13*n^2-54*n+136)/384.
G.f.: -x^4*(11*x^4-39*x^3+51*x^2+76*x+6)/(x-1)^9. - Colin Barker, Nov 24 2012
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Nicholas S. Horne (nickhorne(AT)cox.net), Jul 06 2004
STATUS
approved