A138648 7^n mod 5^n.

0, 2, 24, 93, 526, 1182, 8274, 42293, 296051, 1291107, 9037749, 24201743, 169412201, 453463532, 732838474, 17336900568, 121358303976, 696920237207, 3352562754199, 12023847482518, 65093446049501, 169551827424632, 2140537108378674, 10215388176619468

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Mathematica

Table[PowerMod[7, n, 5^n], {n, 0, 30}] (* Harvey P. Dale, Sep 20 2024 *)

Crossrefs

Sequence in context: A068379 A136280 A123831 * A172225 A145889 A212568

Adjacent sequences: A138645 A138646 A138647 * A138649 A138650 A138651

Keyword

nonn

Author

N. J. A. Sloane, May 20 2008

Status

approved