OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (8,-28,56,-70,56,-28,8,-1).
FORMULA
From Chai Wah Wu, Oct 15 2016: (Start)
a(n) = 8*a(n-1) - 28*a(n-2) + 56*a(n-3) - 70*a(n-4) + 56*a(n-5) - 28*a(n-6) + 8*a(n-7) - a(n-8) for n > 7.
G.f.: 2*x*(4*x^6 + 39*x^5 + 648*x^4 + 1138*x^3 + 648*x^2 + 39*x + 4)/(x - 1)^8. (End)
MATHEMATICA
Table[n^7+7n, {n, 0, 30}] (* Harvey P. Dale, Sep 10 2010 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Odimar Fabeny, Aug 30 2010
EXTENSIONS
First term corrected and additional terms from Harvey P. Dale, Sep 10 2010
STATUS
approved