OFFSET
0,2
REFERENCES
A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pp. 194-196.
Murray R.Spiegel, Calculus of Finite Differences and Difference Equations, "Schaum's Outline Series", McGraw-Hill, 1971, pp. 10-20, 79-94.
LINKS
Index entries for linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).
FORMULA
a(n) = (5n+8)*C(n+7, 7)/8.
G.f.: (1+4*x)/(1-x)^9.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Barry E. Williams, Feb 02 2000
STATUS
approved