OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).
FORMULA
G.f. -2*x*(1+120*x+2157*x^2+7792*x^3+7827*x^4+2136*x^5+127*x^6) / (x-1)^9 . - R. J. Mathar, Oct 13 2011
a(n) = 2*A168067(n). - R. J. Mathar, Oct 13 2011
PROG
(Magma) [n^8+n: n in [0..30]]
(PARI) a(n)=n^8+n \\ Charles R Greathouse IV, Nov 21 2011
CROSSREFS
KEYWORD
nonn,easy,less
AUTHOR
Vincenzo Librandi, Oct 01 2011
STATUS
approved