A139738 a(n) = 10^n mod 8^n.

0, 2, 36, 488, 1808, 1696, 213568, 1611392, 16113920, 60475904, 336323584, 5510719488, 37927325696, 104395350016, 3242976755712, 14837581512704, 148375815127040, 920808197849088, 9208081978490880, 56052022765944832, 848750603811160064

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..300

Mathematica

Table[PowerMod[10, n, 8^n], {n, 0, 20}] (* Harvey P. Dale, Aug 03 2021 *)

Prog

(Magma) [10^n mod 8^n: n in [0..30]]; // Vincenzo Librandi, Jun 02 2011

Crossrefs

Sequence in context: A286266 A193127 A092852 * A248343 A025608 A230132

Adjacent sequences: A139735 A139736 A139737 * A139739 A139740 A139741

Keyword

nonn

Author

N. J. A. Sloane, May 20 2008

Status

approved