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 A250495 #13 Oct 22 2024 20:55:25
%S A250495 1,1,3,196418,141693817714056513234709965875411919657707794958199867
%N A250495 The n^n-th Fibonacci number.
%C A250495 The next term (a(5)) has 653 digits. - _Harvey P. Dale_, Nov 29 2017
%H A250495 Alois P. Heinz, <a href="/A250495/b250495.txt">Table of n, a(n) for n = 0..5</a>
%F A250495 a(n) = [0, 1; 1, 1]^(n^n)[1,2].
%F A250495 a(n) = A000045(n^n) = A250486(n,n).
%F A250495 a(n) = A000045(A000312(n)).
%p A250495 a:= n-> (<<0|1>, <1|1>>^(n^n))[1, 2]:
%p A250495 seq(a(n), n=0..5);
%t A250495 Table[Fibonacci[n^n],{n,0, 5}] (* _Harvey P. Dale_, Nov 29 2017 *)
%Y A250495 Cf. A000045, A000312, A008973, A250486.
%K A250495 nonn
%O A250495 0,3
%A A250495 _Alois P. Heinz_, Nov 24 2014