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!)
A307195 Fill the plane with the square spiral with cells numbered as in A275609; sequence gives the cells along the North spoke starting at the origin. 1
0, 3, 0, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 3, 1, 3, 1, 3, 1, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

The Example section of A275609 shows the central portion of the spiral very clearly. The link below shows a larger portion but is harder to read.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..1000

N. J. A. Sloane, Central portion of spiral, shown without spaces [The central 0 (at (0,0)) has been changed to an X. The illustration shows cells (x,y) with -35 <= x <= 35, -33 <= y <= 36.] The present sequence gives the numbers to the North of the X.

CROSSREFS

Cf. A275609.

The eight spokes starting at the origin are A307193 - A307200.

Sequence in context: A129555 A339558 A147755 * A231188 A249695 A136748

Adjacent sequences: A307192 A307193 A307194 * A307196 A307197 A307198

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Mar 29 2019

EXTENSIONS

More terms from Alois P. Heinz, Mar 30 2019

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 January 29 13:51 EST 2023. Contains 359923 sequences. (Running on oeis4.)