login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A187967 [nr+kr]-[nr]-[kr], where r=sqrt(2), k=2, [ ]=floor. 5
1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

COMMENTS

See A187950.

LINKS

Table of n, a(n) for n=1..128.

MATHEMATICA

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

seqA=Table[Floor[(n+2)r]-Floor[n*r]-Floor[k*r], {n, 1, 220}]   (* A187967 *)

Flatten[Position[seqA, 0] ]   (* A098021 conjectured *)

Flatten[Position[seqA, 1] ]   (* A187968 *)

CROSSREFS

Cf. A187950, A098021, A187968.

Sequence in context: A099443 A132342 A156174 * A106467 A106468 A030317

Adjacent sequences:  A187964 A187965 A187966 * A187968 A187969 A187970

KEYWORD

nonn

AUTHOR

Clark Kimberling, Mar 17 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 24 10:48 EDT 2019. Contains 323529 sequences. (Running on oeis4.)