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A188020 [nr]-[nr-kr]-[kr], where r=(1+sqrt(5))/2, k=7, [ ]=floor. 3
0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

COMMENTS

See A188014.

LINKS

Table of n, a(n) for n=1..117.

FORMULA

a(n)=[nr]-[nr-7r]-[7r], where r=(1+sqrt(5))/2.

MATHEMATICA

r=(1+5^(1/2))/2; k=7;

t=Table[Floor[n*r]-Floor[(n-k)*r]-Floor[k*r], {n, 1, 220}]   (*A188020*)

Flatten[Position[t, 0]]  (*A188024*)

Flatten[Position[t, 1]]  (*A188025*)

CROSSREFS

Cf. A188014, A188024, A188025.

Sequence in context: A080885 A258998 A068716 * A179828 A129184 A129185

Adjacent sequences:  A188017 A188018 A188019 * A188021 A188022 A188023

KEYWORD

nonn

AUTHOR

Clark Kimberling, Mar 19 2011

STATUS

approved

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Last modified April 7 01:00 EDT 2020. Contains 333291 sequences. (Running on oeis4.)