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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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1 COMMENTS See A187950. LINKS G. C. Greubel, Table of n, a(n) for n = 1..10000 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 Cf. A187950, A188399, A188265. Sequence in context: A089012 A083035 A187074 * A288929 A285083 A266982 Adjacent sequences:  A188395 A188396 A188397 * A188399 A188400 A188401 KEYWORD nonn AUTHOR Clark Kimberling, Mar 30 2011 STATUS approved

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Last modified April 15 10:14 EDT 2021. Contains 342977 sequences. (Running on oeis4.)