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 A118540 #2 Oct 02 2013 15:12:51 %S A118540 1,8,0,8,9,2,4,5,3,3,1,4,8,2,1,2,4,4,1,6,5,0,0,7,1,4,2,9,2,6,9,9,5,8, %T A118540 7,4,1,0,9,1,1,8,6,2,9,5,4,7,4,7,7,2,0,4,3,2,1,4,7,1,8,5,2,8,7,3,3,9, %U A118540 5,8,9,1,3,3,5,8,3,6,4,1,7,9,5,1,1,9,7,6,3,8,8,9,1,0,3,0,6,4,5,9 %N A118540 Decimal expansion of the following number: (3/2)^(4/3)^(5/4)^(6/5)^(7/6)^(8/7)^(9/8)^(10/9)^(11/10).... %C A118540 Obtaining 100 digits of precision only requires computing (3/2)^(4/3)^...^(70/69). %e A118540 (3/2)^(4/3)^(5/4)^(6/5)^(7/6)^(8/7)^(9/8)^(10/9)^(11/10)^... = 1.8089245331482124416500714... %t A118540 k = 1; For[a = 100, a > 2, a--, k = (a/(a-1))^k]; First[RealDigits[N[k, 100]]] %Y A118540 Cf. A102575. %K A118540 cons,nonn %O A118540 1,2 %A A118540 _Ryan Propper_, May 06 2006