This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A094986 #11 Sep 08 2022 08:45:13
%S A094986 1,1,3,5,10,18,34,61,110,198,357,642,1156,2082,3748,6746,12143,21859,
%T A094986 39346,70823,127482,229468,413042,743477,1338258,2408865,4335958,
%U A094986 7804725,14048506,25287310,45517159,81930887,147475597,265456074
%N A094986 a(n) = floor(9^n/5^n).
%H A094986 Vincenzo Librandi, <a href="/A094986/b094986.txt">Table of n, a(n) for n = 0..1000</a>
%t A094986 Table[ Floor[(9/5)^n], {n, 0, 30}]
%o A094986 (Magma) [Floor(9^n / 5^n): n in [0..40]]; // _Vincenzo Librandi_, Sep 08 2011
%Y A094986 Cf. A002379, A094969 - A094999.
%K A094986 nonn,easy
%O A094986 0,3
%A A094986 _Robert G. Wilson v_, May 26 2004