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 A094980 #17 Sep 08 2022 08:45:13 %S A094980 1,1,3,5,9,16,28,50,87,153,269,471,825,1443,2526,4421,7737,13540, %T A094980 23696,41468,72570,126998,222247,388933,680633,1191108,2084439, %U A094980 3647768,6383595,11171292,19549761,34212082,59871144,104774502,183355379 %N A094980 a(n) = floor(7^n/4^n). %H A094980 Vincenzo Librandi, <a href="/A094980/b094980.txt">Table of n, a(n) for n = 0..1000</a> %F A094980 Given the Fibonacci numbers F(n) = F(n - 2) + F(n - 1) with F(-2) = -1 and F(-1) = 1 (see A000045), F(n) < (7/4)^n for all n > -1. - _Alonso del Arte_, Oct 21 2018 %e A094980 a(2) = floor((7/4)^2) = floor(3.0625) = 3. %e A094980 a(3) = floor((7/4)^3) = floor(5.359375) = 5. %t A094980 Floor[(7/4)^Range[0, 39]] %o A094980 (Magma) [Floor(7^n / 4^n): n in [0..40]]; // _Vincenzo Librandi_, Sep 08 2011 %o A094980 (PARI) a(n) = 7^n\4^n; \\ _Michel Marcus_, Oct 23 2018 %Y A094980 Cf. A002379, A094969-A094999. %K A094980 nonn,easy %O A094980 0,3 %A A094980 _Robert G. Wilson v_, May 26 2004