login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A188086 [nr+kr]-[nr]-[kr], where r=sqrt(3), k=3, [ ]=floor. 3
0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

COMMENTS

See A187950

LINKS

Table of n, a(n) for n=1..138.

FORMULA

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

MATHEMATICA

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

seqA=Table[Floor[n*r+k*r]-Floor[n*r]-Floor[k*r], {n, 1, 220}]   (* A188086 *)

Flatten[Position[seqA, 0] ]   (* A188087 *)

Flatten[Position[seqA, 1] ]   (* A188088 *)

CROSSREFS

Cf. A187950, A188087, A188088.

Sequence in context: A221151 A353470 A342753 * A105563 A188291 A287372

Adjacent sequences:  A188083 A188084 A188085 * A188087 A188088 A188089

KEYWORD

nonn

AUTHOR

Clark Kimberling, Mar 20 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 27 22:39 EDT 2022. Contains 354110 sequences. (Running on oeis4.)