This site is supported by donations to The OEIS Foundation.

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A070450 a(n) = n^2 mod 28. 7
 0, 1, 4, 9, 16, 25, 8, 21, 8, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 8, 21, 8, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 8, 21, 8, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 8, 21, 8, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 8, 21, 8, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 8, 21, 8, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS G. C. Greubel, Table of n, a(n) for n = 0..1000 FORMULA a(n) = a(n-28). - G. C. Greubel, Mar 24 2016 MATHEMATICA Table[Mod[n^2, 28], {n, 0, 200}] (* Vladimir Joseph Stephan Orlovsky, Apr 27 2011 *) PROG (PARI) a(n)=n^2%28 \\ Charles R Greathouse IV, Apr 06 2016 CROSSREFS Cf. A070448, A070449. Sequence in context: A070452 A070653 A070451 * A070449 A070448 A081403 Adjacent sequences:  A070447 A070448 A070449 * A070451 A070452 A070453 KEYWORD nonn,easy AUTHOR N. J. A. Sloane, May 12 2002 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 10 04:09 EST 2016. Contains 278993 sequences.