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 A320988 #4 Oct 25 2018 20:42:23 %S A320988 0,1,6,37,1338,289045,2247615258,3775130549469973, %T A320988 49305824977081270580396826, %U A320988 1081619448805341465793189347926225612555029,309896735146874396575135322682564794037430646677718800894678718858010 %N A320988 Fibonacci rabbit sequence number n coded in base six. %H A320988 Alois P. Heinz, <a href="/A320988/b320988.txt">Table of n, a(n) for n = 0..15</a> %p A320988 b:= proc(n) option remember; `if`(n<2, [n$2], [b(n-1)[1]* %p A320988 6^b(n-1)[2]+b(n-2)[1], b(n-1)[2]+b(n-2)[2]]) %p A320988 end: %p A320988 a:= n-> b(n)[1]: %p A320988 seq(a(n), n=0..11); %Y A320988 Column k=6 of A144287. %K A320988 nonn %O A320988 0,3 %A A320988 _Alois P. Heinz_, Oct 25 2018