A054580 n^2 modulo 17.

0, 1, 4, 9, 16, 8, 2, 15, 13, 13, 15, 2, 8, 16, 9, 4, 1, 0, 1, 4, 9, 16, 8, 2, 15, 13, 13, 15, 2, 8, 16, 9, 4, 1, 0, 1, 4, 9, 16, 8, 2, 15, 13, 13, 15, 2, 8, 16, 9, 4, 1, 0, 1, 4, 9, 16, 8, 2, 15, 13, 13, 15, 2, 8, 16, 9, 4, 1, 0, 1, 4, 9, 16, 8, 2, 15, 13, 13, 15, 2, 8, 16, 9, 4, 1, 0, 1, 4, 9

Offset

0,3

Links

Table of n, a(n) for n=0..88.

Mathematica

Table[Mod[n^2, 17], {n, 0, 200}] (* Vladimir Joseph Stephan Orlovsky, Apr 23 2011 *)
PowerMod[Range[0, 90], 2, 17] (* Harvey P. Dale, Aug 16 2012 *)

Prog

(PARI) a(n)=n^2%17 \\ Charles R Greathouse IV, Apr 06 2016

Crossrefs

Cf. A070439, A070440, A070441.

Sequence in context: A070441 A070440 A368103 * A165488 A366862 A369133

Adjacent sequences: A054577 A054578 A054579 * A054581 A054582 A054583

Keyword

nonn,easy

Author

Stuart M. Ellerstein (ellerstein(AT)aol.com), Apr 11 2000

Extensions

More terms from James A. Sellers, Apr 12 2000

Status

approved