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%I #19 Sep 08 2022 08:44:38
%S 625,1953125,6103515625,19073486328125,59604644775390625,
%T 186264514923095703125,582076609134674072265625,
%U 1818989403545856475830078125,5684341886080801486968994140625,17763568394002504646778106689453125
%N a(n) = 5^(5*n + 4).
%H Vincenzo Librandi, <a href="/A013837/b013837.txt">Table of n, a(n) for n = 0..100</a>
%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>
%H <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (3125).
%F From _Philippe Deléham_, Dec 03 2008: (Start)
%F a(n) = 3125*a(n-1), n > 0; a(0)=625.
%F G.f.: 625/(1-3125*x). (End)
%o (Magma) [5^(5*n+4): n in [0..15]]; // _Vincenzo Librandi_, Jul 07 2011
%Y Cf. A000351 (5^n), A016897 (5*n+4).
%K nonn,easy
%O 0,1
%A _N. J. A. Sloane_
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