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 A175998 #10 Nov 28 2012 07:50:35 %S A175998 1,7,4,0,1,7,6,2,9,0,5,2,8,8,3,0,0,3,2,3,8,4,1,1,4,4,6,2,2,6,1,6,9,0, %T A175998 6,1,5,3,2,7,3,0,5,3,8,9,3,0,0,6,3,4,8,1,6,8,9,1,0,5,2,6,0,2,5,4,0,3, %U A175998 1,1,9,0,7,9,4,2,1,0,8,6,4,6,4,3,4,5,9,4,2,6,3,0,4,5,2,9,7,2,5,0 %N A175998 Decimal expansion of (e-1)*(e^(1/e)-1) - int(x^(1/x)-1, x=1..e). %C A175998 Area contained by y=x^(1/x), x=e, and y=1. %C A175998 Difference between the numbers defined in A175996 and A175997. %e A175998 0.174017629052883003238411446226169... %o A175998 (PARI) e=exp(1); (e-1)*(e^(1/e)-1)-intnum(x=1,e,x^(1/x)-1) \\ - _M. F. Hasler_, Nov 27 2012 %Y A175998 Cf. A073229, A175996, A175997. %K A175998 cons,nonn %O A175998 0,2 %A A175998 _Dylan Hamilton_, Nov 05 2010