OFFSET
0,5
LINKS
Clark Kimberling, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (1, 1, 0, 0, 0, 0, 0, 1, -1, -1)
FORMULA
G.f.: (x^3 (1 + x + x^2) (1 - x^2 + x^3))/((-1 + x) (1 + x) (1 + x^2) (-1 + x + x^2) (1 + x^4)).
a(n) = a(n-1) + a(n-2) + a(n-8) - a(n-9) - a(n-10) for n >= 11.
a(n) = floor(2*Fibonacci(n)/3).
a(n) = A293546(n) - 1 for n > 0.
MATHEMATICA
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Oct 12 2017
STATUS
approved