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A188192 [nr]-[kr]-[nr-kr], where r=sqrt(5), k=3, [ ]=floor. 3
1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

COMMENTS

See A188014.

LINKS

Table of n, a(n) for n=1..134.

FORMULA

a(n)=[nr]-[3r]-[nr-3r], where r=sqrt(5).

MATHEMATICA

r=5^(1/2)); k=3;

t=Table[Floor[n*r]-Floor[(n-k)*r]-Floor[k*r], {n, 1, 220}]   (*A188192*)

Flatten[Position[t, 0]]  (* to be determined Mar 24 *)

Flatten[Position[t, 1]]  (* to be determined Mar 24 *)

CROSSREFS

Cf. A188014, (more to be determined Mar 24).

Sequence in context: A127015 A281114 A286749 * A068432 A134668 A309970

Adjacent sequences:  A188189 A188190 A188191 * A188193 A188194 A188195

KEYWORD

nonn

AUTHOR

Clark Kimberling, Mar 23 2011

STATUS

approved

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Last modified October 15 03:09 EDT 2019. Contains 328025 sequences. (Running on oeis4.)