OFFSET
0,2
COMMENTS
a(n)= A038165(2*n).
LINKS
Index entries for linear recurrences with constant coefficients, signature (10, -45, 120, -210, 252, -210, 120, -45, 10, -1).
FORMULA
a(n)= binomial(n+7, 7)*(4*n^2+23*n+18)/18.
G.f.:(1+10*x+5*x^2)/(1-x)^10.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Feb 02 2001.
STATUS
approved