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 A243448 #7 Jun 05 2014 11:35:53 %S A243448 1,0,2,9,3,7,5,3,7,3,0,0,3,9,6,4,1,3,2,0,5,6,9,8,6,6,4,6,9,8,0,9,7,3, %T A243448 1,8,3,4,8,5,3,7,3,8,7,8,3,9,2,6,6,5,2,4,7,0,9,6,1,1,9,6,2,2,0,2,7,7, %U A243448 4,2,8,5,7,3,4,9,1,7,3,6,1,6,0,6,6,4,8,0,2,7,1,6,2,8,3,6,0,0,9 %N A243448 Decimal expansion of 6*arcsec(sqrt(3))/Pi^(3/2), an extreme value constant. %C A243448 Expectation of the maximum of a size 4 sample from a normal (0,1) distribution. %D A243448 Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 5.16 Extreme value constants, p. 365. %t A243448 RealDigits[6*ArcSec[Sqrt[3]]/Pi^(3/2), 10, 99] // First %Y A243448 Cf. A087197, A188340, A243446, A243447. %K A243448 nonn,cons,easy %O A243448 1,3 %A A243448 _Jean-François Alcover_, Jun 05 2014