OFFSET
0,1
COMMENTS
Inverse binomial transform of 8, 2, 8, 1, 8, 2 ,8, 1,... with a(0)=8, a(1)=2 etc.
LINKS
Index entries for linear recurrences with constant coefficients, signature (-4, -6, -4).
FORMULA
a(n)= -4*a(n-1) -6*a(n-2) -4*a(n-3), n>3. G.f.: (26*x+36*x^2+19*x^3+8)/( (2*x+1) * (2*x^2+2*x+1)). [R. J. Mathar, Mar 10 2010]
a(n+1) +2*a(n) = (-1)^(n+1)*A009545(n-1), n > 0.
MATHEMATICA
Join[{8}, LinearRecurrence[{-4, -6, -4}, {-6, 12, -25}, 40]] (* Harvey P. Dale, Sep 25 2013 *)
CROSSREFS
KEYWORD
sign
AUTHOR
Paul Curtz, Feb 18 2010
EXTENSIONS
Extended by R. J. Mathar, Mar 10 2010
STATUS
approved