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%I #11 Sep 08 2022 08:45:33
%S 0,2,36,488,1808,1696,213568,1611392,16113920,60475904,336323584,
%T 5510719488,37927325696,104395350016,3242976755712,14837581512704,
%U 148375815127040,920808197849088,9208081978490880,56052022765944832,848750603811160064
%N a(n) = 10^n mod 8^n.
%H Vincenzo Librandi, <a href="/A139738/b139738.txt">Table of n, a(n) for n = 0..300</a>
%t Table[PowerMod[10,n,8^n],{n,0,20}] (* _Harvey P. Dale_, Aug 03 2021 *)
%o (Magma) [10^n mod 8^n: n in [0..30]]; // _Vincenzo Librandi_, Jun 02 2011
%K nonn
%O 0,2
%A _N. J. A. Sloane_, May 20 2008
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