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%I #10 Sep 08 2022 08:45:30
%S 5,13,42,157,625,2605,11161,48829,217014,976563,4438921,20345053,
%T 93900241,435965402,2034505209,9536743165,44878791361,211927625869,
%U 1003867701481,4768371582032,22706531343006,108372081409802
%N a(n) = ceiling(5^n/n).
%H Vincenzo Librandi, <a href="/A129789/b129789.txt">Table of n, a(n) for n = 1..1000</a>
%o (Magma) [Ceiling(5^n/n):n in [1..30]]; // _Vincenzo Librandi_, Oct 03 2011
%Y Cf. A053638.
%K nonn,easy
%O 1,1
%A _Mohammad K. Azarian_, May 18 2007