login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A188220 Positions of 1 in the zero-one sequence [nr]-[5r]-[nr-5r], where r=sqrt(5), n>=1. 1
9, 13, 17, 26, 30, 34, 43, 47, 51, 60, 64, 68, 77, 81, 85, 89, 98, 102, 106, 115, 119, 123, 132, 136, 140, 149, 153, 157, 161, 170, 174, 178, 187, 191, 195, 204, 208, 212, 221, 225, 229, 233, 242, 246, 250, 259, 263, 267, 276, 280, 284, 293, 297, 301, 305, 314, 318, 322, 331, 335, 339, 348, 352, 356, 365, 369, 373, 382, 386, 390, 394, 403, 407, 411, 420, 424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A188014.

LINKS

Table of n, a(n) for n=1..76.

MATHEMATICA

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

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

Flatten[Position[t, 1]]  (*A188220*)

CROSSREFS

Cf. A188014.

Sequence in context: A134441 A174055 A273059 * A211429 A103152 A295113

Adjacent sequences:  A188217 A188218 A188219 * A188221 A188222 A188223

KEYWORD

nonn

AUTHOR

Clark Kimberling, Mar 24 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 September 22 07:45 EDT 2021. Contains 347605 sequences. (Running on oeis4.)