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 A058124 #14 Nov 05 2013 02:41:46 %S A058124 -1,0,0,7625597465304 %N A058124 n^(n^n)-(n^n)^n with 0^0=1. %H A058124 Vincenzo Librandi, <a href="/A058124/b058124.txt">Table of n, a(n) for n = 0..5</a> %F A058124 a(n) =A002488(n)-A002489(n) %e A058124 a(2)=2^4-4^2=16-16=0. a(3)=3^27-27^3=7625597484987-19683=7625597465304 %Y A058124 Cf. A002488, A002489, A007925, A058125. %K A058124 sign %O A058124 0,4 %A A058124 _Henry Bottomley_, Nov 10 2000 %E A058124 Offset corrected by _Arkadiusz Wesolowski_, Aug 24 2011