OFFSET
1
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
MATHEMATICA
u = 1/2; v = GoldenRatio;
f[n_] := Floor[n*u + n*v] - Floor[n*u] - Floor[n*v]
t = Table[f[n], {n, 1, 120}] (* A190236 *)
Flatten[Position[t, 0]] (* A190237 *)
Flatten[Position[t, 1]] (* A190238 *)
Table[Floor[n*(2 + Sqrt[5])/2] - Floor[n/2] - Floor[n*(1 + Sqrt[5])/2], {n, 1, 50}] (* G. C. Greubel, Dec 27 2017 *)
PROG
(PARI) for(n=1, 30, print1(floor(n*(2 + sqrt(5))/2) - floor(n/2) - floor(n*(1 + sqrt(5))/2), ", ")) \\ G. C. Greubel, Dec 27 2017
(Magma) [Floor(n*(1+Sqrt(5))/2) - Floor(n/2) - Floor(n*(1+Sqrt(5))/2): n in [1..30]]; // G. C. Greubel, Dec 27 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, May 06 2011
STATUS
approved