OFFSET
1,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (1,0,0,9241598,-9241598,0,0,-1,1).
FORMULA
a(1)=0, a(2)=55, a(3)=9064, a(4)=1480479, a(5)=9241598*a(1)+4620798-a(4), a(6)=9241598*a(2)+4620798-a(3), a(7)=9241598*a(3)+4620798-a(2), a(8)=9241598*a(4)+4620798-a(1), then a(n)=9241598*a(n-4)+4620798-a(n-8).
G.f.: -x^2*(55*x^6+9009*x^5+1471415*x^4+1659840*x^3+1471415*x^2+9009*x+55) / ((x-1)*(x^4-3040*x^2+1)*(x^4+3040*x^2+1)). [Colin Barker, Mar 07 2013]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Pierre CAMI, Apr 22 2005
EXTENSIONS
a(10)-a(16) from Colin Barker, Mar 07 2013
STATUS
approved