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 A134501 #24 Mar 11 2024 05:59:14
%S A134501 2,55,1597,46368,1346269,39088169,1134903170,32951280099,956722026041,
%T A134501 27777890035288,806515533049393,23416728348467685,679891637638612258,
%U A134501 19740274219868223167,573147844013817084101,16641027750620563662096
%N A134501 a(n) = Fibonacci(7n + 3).
%H A134501 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (29,1).
%F A134501 From _R. J. Mathar_, Jul 04 2011: (Start)
%F A134501 G.f.: (-2+3*x) / (-1 + 29*x + x^2).
%F A134501 a(n) = 2*A049667(n+1) - 3*A049667(n). (End)
%F A134501 a(n) = A000045(A017017(n)). - _Michel Marcus_, Nov 07 2013
%t A134501 Table[Fibonacci[7n+3], {n, 0, 30}]
%o A134501 (Magma) [Fibonacci(7*n+3): n in [0..100]]; // _Vincenzo Librandi_, Apr 16 2011
%o A134501 (PARI) a(n)=fibonacci(7*n+3) \\ _Charles R Greathouse IV_, Jun 11 2015
%Y A134501 Cf. A000045, A001906, A001519, A033887, A015448, A014445, A033888, A033889, A033890, A033891, A102312, A099100, A134490-A134495, A103134, A134497 - A134504.
%K A134501 nonn,easy
%O A134501 0,1
%A A134501 _Artur Jasinski_, Oct 28 2007
%E A134501 Offset changed to 0 by _Vincenzo Librandi_, Apr 16 2011