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 A258503 #8 Jun 01 2015 14:45:33 %S A258503 1,5,2,9,6,9,3,1,3,4,3,6,1,7,8,6,8,2,3,0,0,3,1,3,0,8,0,4,6,6,4,5,4,9, %T A258503 5,1,3,1,3,3,5,7,7,2,2,0,0,2,5,1,7,3,1,2,5,1,4,5,7,6,8,7,1,0,4,2,1,9, %U A258503 8,5,6,0,1,8,8,2,1,5,7,9,6,3,0,0,9,6,4,8,1,0,8,9,5,2,9,1,4,3,8,8,5,8,6 %N A258503 Decimal expansion of (64/27)^(256/81) = (256/81)^(64/27). %H A258503 Jonathan Sondow, Diego Marques, <a href="http://arxiv.org/abs/1108.6096">Algebraic and transcendental solutions of some exponential equations</a>, Annales Mathematicae et Informaticae 37 (2010) 151-164 %F A258503 -((x*ProductLog(-1, -(log(x)/x)))/log(x)), replacing x with 64/27, gives 256/81 (ProductLog is the Lambert W function). %e A258503 15.2969313436178682300313080466454951313357722002517312514576871... %t A258503 RealDigits[(64/27)^(256/81), 10, 103] // First %Y A258503 Cf. A194556, A194789, A258504. %K A258503 nonn,cons,easy %O A258503 2,2 %A A258503 _Jean-François Alcover_, Jun 01 2015