OFFSET
1,3
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..2000
Index entries for linear recurrences with constant coefficients, signature (0, 2, 0, 0, 0, -1).
FORMULA
G.f.: -((x (-1 - 2 x - x^2 + x^5 + x^6 + x^7))/((-1 + x) (1 + x) (-1 + x^2 + x^4)))
MATHEMATICA
Union[#, # - 1] &[LucasL[Range[50]]]
CROSSREFS
KEYWORD
nonn,easy,changed
AUTHOR
Clark Kimberling and Peter J. C. Moses, Jul 01 2015
STATUS
approved