A029757 - OEIS

A029757

a(n) = 5^n mod 2^n.

0, 1, 1, 5, 1, 21, 9, 45, 225, 357, 761, 1757, 2641, 5013, 489, 18829, 28609, 11973, 59865, 37181, 185905, 929525, 2550473, 4363757, 13430177, 42021, 33764537, 34604957, 38807057, 194035285, 433305513

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,4

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..240

MAPLE

a:=n->5^n mod(2^(n)): seq(a(n), n=0..33); # Zerinvary Lajos, Feb 15 2008

MATHEMATICA

Table[PowerMod[5, n, 2^n], {n, 0, 30}] (* Harvey P. Dale, Oct 16 2025 *)

PROG

(PARI) A029757(n) = lift(Mod(5^n, 2^n)) \\ Michael B. Porter, Feb 02 2010

(Magma) [5^n mod 2^n: n in [0..80]]; // Vincenzo Librandi, Apr 25 2011

CROSSREFS

Sequence in context: A126325 A278544 A095368 * A146056 A101625 A051929

Adjacent sequences: A029754 A029755 A029756 * A029758 A029759 A029760

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved