OFFSET
0,4
FORMULA
From Chai Wah Wu, Sep 23 2016: (Start)
a(n) = a(n-1) + a(n-2) + a(n-3) - a(n-4) - a(n-5) for n > 4.
G.f.: (1 + x)*(1 - x - x^3)/((1 - x)*(1 - x - x^2)*(1 + x + x^2)). (End)
MATHEMATICA
Table[f=Fibonacci[n]; If[EvenQ[f], f = f/2, f = (f-1)/2]; f+1, {n, 0, 100}] (* Vladimir Joseph Stephan Orlovsky, Nov 22 2010 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Giovanni Teofilatto, Nov 19 2008
EXTENSIONS
Definition and offset corrected by R. J. Mathar, Jan 30 2010
Definition corrected by Joel B. Lewis, Nov 14 2012
STATUS
approved