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A188398
a(n) = [n*r+k*r] - [n*r] - [k*r], where r=1/sqrt(2), k=5, [ ]=floor.
4
1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1
OFFSET
1
COMMENTS
See A187950.
LINKS
FORMULA
a(n) = [n*r+5*r] - [n*r] - [5*r], where r=1/sqrt(2).
MATHEMATICA
r=2^(-1/2); k=5;
t=Table[Floor[n*r+k*r]-Floor[n*r]-Floor[k*r], {n, 1, 220}] (* A188398 *)
Flatten[Position[t, 0] ] (* A188399 *)
Flatten[Position[t, 1] ] (* A188265 *)
PROG
(PARI) for(n=1, 100, print1(floor((n+5)/sqrt(2)) - floor(n/sqrt(2)) - floor(5/sqrt(2)), ", ")) \\ G. C. Greubel, Apr 11 2018
(Magma) [Floor((n+5)/Sqrt(2)) - Floor(n/Sqrt(2)) - Floor(5/Sqrt(2)): n in [1..100]]; // G. C. Greubel, Apr 11 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Mar 30 2011
STATUS
approved