A138955 a(n) = 8^n mod 3^n.

0, 2, 1, 26, 46, 206, 433, 2006, 739, 19034, 53857, 76562, 435349, 1357028, 1290286, 5539319, 1267831, 96236090, 124187905, 993503240, 974457118, 4308872543, 13550273938, 45640072286, 176834220634, 567385155629, 1149926807260, 6657548629751, 22757999098060

Offset

0,2

Links

Table of n, a(n) for n=0..28.

Mathematica

a[n_]:=PowerMod[8, n, 3^n]; Array[a, 29, 0] (* James C. McMahon, Jun 23 2025 *)

Prog

(SageMath) [power_mod(8, n, 3^n)for n in range(0, 29)] # Zerinvary Lajos, Nov 28 2009
(PARI) a(n) = lift(Mod(8, 3^n)^n); \\ Michel Marcus, Feb 20 2018

Crossrefs

Cf. A000244, A001018.

Sequence in context: A366048 A098878 A235031 * A089963 A362013 A336911

Adjacent sequences: A138952 A138953 A138954 * A138956 A138957 A138958

Keyword

nonn

Author

N. J. A. Sloane, May 20 2008

Status

approved