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 A285814 #10 Apr 27 2017 19:40:42 %S A285814 1,6,6,3,0,2,7,2,6,4,5,9,5,6,8,9,5,2,1,1,3,2,6,6,7,6,6,2,6,8,4,6,8,4, %T A285814 1,8,8,8,9,3,0,9,2,9,8,0,6,3,8,8,1,9,1,0,3,3,1,8,3,2,4,3,3,1,9,6,2,7, %U A285814 0,1,9,6,5,6,4,1,4,1,3,5,1,1,3,6,5,7,6,4,9,7,0,6,9,7,1,2,4,4,9,2,0,4,6,0,6 %N A285814 Decimal expansion of the limit of the nested logarithm log(1+2*log(1+3*log(1+4*log(...)))). %C A285814 No closed form expression is known. Probably transcendental but this is unproved. %H A285814 Alex Klotz, <a href="http://klotza.blogspot.com/2016/10/the-nested-logarithm-constants.html">The Nested Logarithm Constants</a> %e A285814 1.6630272645956895211326676626846841888930929806388191033183243319627019656... %t A285814 bgn = 147; RealDigits[ Fold[ N[1 + #2*Log@#1, 200] &, bgn +1, Reverse@Range@bgn] -1, 10, 111][[1]] %Y A285814 Cf. A072449, A276521, A276538, A276539, A277313, A278812, A283749. %K A285814 nonn,cons %O A285814 1,2 %A A285814 _Alex Klotz_ and _Robert G. Wilson v_, Apr 27 2017