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 A073241 #5 Mar 10 2015 14:17:12
%S A073241 4,5,1,5,0,8,3,4,5,5,3,6,5,7,2,8,0,5,2,2,1,9,9,3,8,1,8,0,4,4,7,3,4,0,
%T A073241 3,6,5,4,0,9,0,2,8,0,2,6,4,5,9,7,9,7,0,5,1,8,5,4,4,2,7,3,0,0,4,1,2,5,
%U A073241 2,6,6,9,2,7,8,9,4,8,3,4,8,2,7,7,2,5,5,0,6,0,0,3,5,5,8,4,3,1,0,8,9,3,0,8
%N A073241 Decimal expansion of (1/Pi)^(1/Pi)^(1/Pi).
%e A073241 0.45150834553657280522199381804...
%t A073241 With[{c=1/Pi},RealDigits[c^c^c,10,120][[1]]] (* _Harvey P. Dale_, Mar 10 2015 *)
%o A073241 (PARI) (1/Pi)^(1/Pi)^(1/Pi)
%Y A073241 Cf. A000796 (Pi), A049541 (1/Pi), A073240 ((1/Pi)^(1/Pi)), A073243 (limit of (1/Pi)^(1/Pi)^...^(1/Pi)), A073242 (((1/Pi)^(1/Pi))^(1/Pi)), A073234 (Pi^Pi^Pi).
%K A073241 cons,nonn
%O A073241 0,1
%A A073241 _Rick L. Shepherd_, Jul 27 2002