A188020 [nr]-[nr-kr]-[kr], where r=(1+sqrt(5))/2, k=7, [ ]=floor.

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

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: A258998 A363713 A068716 * A179828 A129184 A129185

Adjacent sequences: A188017 A188018 A188019 * A188021 A188022 A188023

Keyword

nonn

Author

Clark Kimberling, Mar 19 2011

Status

approved