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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A165488 Square the terms of A165482 while preserving the signs. 4
0, 1, 4, 9, 16, 9, 16, 9, 16, 25, 16, 9, 16, 9, 4, 1, 4, 1, 4, 9, 4, 1, 0, -1, 0, 1, 0, 1, 0, 1, 0, -1, 0, -1, -4, -1, 0, -1, 0, -1, -4, -1, -4, -9, -16, -25, -36, -25, -16, -9, -4, -9, -16, -9, -4, -1, -4, -1, 0, -1, -4, -1, -4, -9, -4, -1, -4, -9, -16, -25, -16, -25, -16, -9 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Period 28657.

LINKS

A. Karttunen, Table of n, a(n) for n = 0..28657

CROSSREFS

Cf. A165486, A165487, A165488.

Sequence in context: A070441 A070440 A054580 * A313300 A313301 A313302

Adjacent sequences:  A165485 A165486 A165487 * A165489 A165490 A165491

KEYWORD

sign

AUTHOR

Antti Karttunen, Sep 21 2009

EXTENSIONS

Definition revised by N. J. A. Sloane, Jan 26 2013

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 December 6 22:42 EST 2021. Contains 349567 sequences. (Running on oeis4.)