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 A134491 #25 Mar 11 2024 11:32:29
%S A134491 3,34,377,4181,46368,514229,5702887,63245986,701408733,7778742049,
%T A134491 86267571272,956722026041,10610209857723,117669030460994,
%U A134491 1304969544928657,14472334024676221,160500643816367088
%N A134491 a(n) = Fibonacci(5n+4).
%H A134491 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (11,1)
%F A134491 G.f.: ( -3-x ) / ( -1+11*x+x^2 ). - _R. J. Mathar_, Apr 17 2011
%F A134491 a(n) = A000045(A016897(n)). - _Michel Marcus_, Nov 07 2013
%t A134491 Table[Fibonacci[5n + 4], {n, 0, 30}]
%o A134491 (Magma) [Fibonacci(5*n +4): n in [0..100]]; // _Vincenzo Librandi_, Apr 17 2011
%o A134491 (PARI) a(n)=fibonacci(5*n+4) \\ _Charles R Greathouse IV_, Oct 16 2015
%Y A134491 Cf. A000045, A016897, A102312, A099100, A134490.
%K A134491 nonn,easy
%O A134491 0,1
%A A134491 _Artur Jasinski_, Oct 28 2007