login
A190201
a(n) = [n*u+n*v]-[n*u]-[n*v], where u=sqrt(5), v=1/u, and []=floor.
3
0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0
OFFSET
1
LINKS
MATHEMATICA
u = 5^(1/2); v = 1/u;
f[n_] := Floor[n*u + n*v] - Floor[n*u] - Floor[n*v]
t = Table[f[n], {n, 1, 120}] (*A190201*)
Flatten[Position[t, 0]] (*A190202*)
Flatten[Position[t, 1]] (*A190203*)
PROG
(PARI) for(n=1, 30, print1(floor(n*(sqrt(5) + 1/sqrt(5))) - floor(n*sqrt(5)) - floor(n/sqrt(5)), ", ")) \\ G. C. Greubel, Dec 27 2017
(Magma) [Floor(n*(Sqrt(5) + 1/Sqrt(5))) - Floor(n*Sqrt(5)) - Floor(n/Sqrt(5)): n in [1..30]]; // G. C. Greubel, Dec 27 2017
CROSSREFS
Sequence in context: A095076 A285080 A167392 * A189702 A168395 A278718
KEYWORD
nonn
AUTHOR
Clark Kimberling, May 05 2011
STATUS
approved