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!)
A010384 Squares mod 22. 1
0, 1, 3, 4, 5, 9, 11, 12, 14, 15, 16, 20 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..12.

MATHEMATICA

Union[PowerMod[Range[22], 2, 22]] (* Alonso del Arte, Dec 22 2019 *)

PROG

(Sage) [quadratic_residues(22)] # Zerinvary Lajos, May 24 2009

(Scala) (1 to 22).map(n => (n * n) % 22).toSet.toSeq.sorted // Alonso del Arte, Dec 22 2019

CROSSREFS

Row 22 of A096008.

Cf. A028735.

Sequence in context: A035236 A047600 A325464 * A028954 A035247 A321995

Adjacent sequences:  A010381 A010382 A010383 * A010385 A010386 A010387

KEYWORD

nonn,fini,full,easy

AUTHOR

N. J. A. Sloane

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 March 3 03:03 EST 2021. Contains 341756 sequences. (Running on oeis4.)