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A190245
a(n) = [nu+nv]-[nu]-[nv], where u=sqrt(2), v=2u, and []=floor.
3
1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0
OFFSET
1
LINKS
MATHEMATICA
u = 2^(1/2); v = 2u;
f[n_] := Floor[n*u + n*v] - Floor[n*u] - Floor[n*v]
t = Table[f[n], {n, 1, 120}] (*A190245*)
Flatten[Position[t, 0]] (*A190246*)
Flatten[Position[t, 1]] (*A190247*)
PROG
(PARI) for(n=1, 30, print1(floor(3*n*sqrt(2)) - floor(n*sqrt(2)) - floor(2*n*sqrt(2)), ", ")) \\ G. C. Greubel, Dec 26 2017
(Magma) [Floor(3*n*Sqrt(2)) - Floor(n*Sqrt(2)) - Floor(2*n*Sqrt(2)): n in [1..30]]; // G. C. Greubel, Dec 26 2017
CROSSREFS
Sequence in context: A016330 A085002 A170966 * A328100 A332479 A362460
KEYWORD
nonn
AUTHOR
Clark Kimberling, May 06 2011
STATUS
approved