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 A103562 #18 Nov 25 2014 10:12:12
%S A103562 2,9,262144,542101086242752217003726400434970855712890625
%N A103562 a(n) = n^((n-1)^(n-2)), n>=2.
%C A103562 Note that a(6) has 487 digits, cf. A049384.
%C A103562 The sequence starts at a(2); the continuous extension would have a(1+) = e in the limit. [_Karl W. Heuer_, Nov 25 2014]
%t A103562 Table[n^(n-1)^(n-2),{n,2,6}] (* _Vladimir Joseph Stephan Orlovsky_, Mar 14 2011 *)
%Y A103562 Cf. A049384.
%K A103562 nonn
%O A103562 2,1
%A A103562 _Zak Seidov_, Mar 23 2005