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A188044
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a(n) = [n*r] - [k*r] - [n*r-k*r], where r=sqrt(2), k=4, [ ]=floor.
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3
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1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1
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OFFSET
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1
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COMMENTS
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LINKS
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FORMULA
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a(n) = [n*r] - [4*r] - [n*r-4*r], r=sqrt(2).
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MATHEMATICA
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r=2^(1/2); k=4;
t=Table[Floor[n*r]-Floor[(n-k)*r]-Floor[k*r], {n, 1, 220}] (* A188044 *)
Flatten[Position[t, 0]] (* A188045 *)
Flatten[Position[t, 1]] (* A188046 *)
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PROG
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(PARI) for(n=1, 100, print1(floor(n*sqrt(2)) - floor(4*sqrt(2)) - floor((n-4)*sqrt(2)), ", ")) \\ G. C. Greubel, Apr 13 2018 *)
(Magma) [Floor(n*Sqrt(2)) - Floor(4*Sqrt(2)) - Floor((n-4)*Sqrt(2)): n in [1..100]]; // G. C. Greubel, Apr 13 2018
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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