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 A206607 #22 Jun 05 2024 14:49:43
%S A206607 13,11,24,35,59,94,153,247,400,647,1047,1694,2741,4435,7176,11611,
%T A206607 18787,30398,49185,79583,128768,208351,337119,545470,882589,1428059,
%U A206607 2310648,3738707,6049355,9788062,15837417,25625479,41462896,67088375,108551271,175639646
%N A206607 Fibonacci sequence beginning 13, 11.
%H A206607 Vincenzo Librandi, <a href="/A206607/b206607.txt">Table of n, a(n) for n = 1..1000</a>
%H A206607 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (1,1).
%t A206607 LinearRecurrence[{1, 1}, {13, 11}, 80]
%o A206607 (Magma) I:=[13, 11]; [n le 2 select I[n] else Self(n-1)+Self(n-2): n in [1..50]]; // _Vincenzo Librandi_, Feb 16 2012
%Y A206607 Cf. A000032, A000045.
%K A206607 nonn,easy
%O A206607 1,1
%A A206607 _Vladimir Joseph Stephan Orlovsky_, Feb 10 2012