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 A165733 #2 Mar 31 2012 10:31:22 %S A165733 2,6,0,0,8,9,4,7,1,6,1,6,3,9,9,3,4,4,7,1,1,4,6,5,1,7,2,5,5,1,1,6,6,8, %T A165733 7,2,3,7,2,3,2,4,4,7,5,7,5,7,7,7,8,9,4,5,3,2,0,1,4,1,4,1,1,5,1,0,0,2, %U A165733 5,9,3,7,1,1,5,2,3,8,3,8,2,8,9,1,0,3,6,9,1,0,9,9,4,2,8,0,1 %N A165733 Decimal expansion of sum(e^(1/n!)-1,n>=1). %e A165733 2.600894716163993447114651725511668723723244757577789453201414115100259371152383828910369109942801... %Y A165733 Cf. A165732. %K A165733 cons,nonn %O A165733 1,1 %A A165733 _Benoit Jubin_, Sep 25 2009