A138616 a(n) = 7^n mod 2^n.

0, 1, 1, 7, 1, 7, 17, 119, 193, 327, 753, 1175, 2081, 6375, 3665, 9271, 32129, 28295, 66993, 206807, 923361, 1220647, 2253073, 7382903, 9737281, 1052103, 40919153, 17998615, 125990305, 345061223, 804815825, 265001655, 1855011585, 4395146503, 4996221745

Offset

0,4

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Mathematica

Table[PowerMod[7, n, 2^n], {n, 0, 40}] (* Harvey P. Dale, Mar 19 2013 *)

Prog

(Magma) [7^n mod 2^n: n in [0..35]]; // Vincenzo Librandi, Jun 03 2011

Crossrefs

Sequence in context: A256255 A131115 A151778 * A021937 A021586 A091131

Adjacent sequences: A138613 A138614 A138615 * A138617 A138618 A138619

Keyword

nonn

Author

N. J. A. Sloane, May 20 2008

Status

approved