%I A062539
%S A062539 2,6,2,2,0,5,7,5,5,4,2,9,2,1,1,9,8,1,0,4,6,4,8,3,9,5,8,9,8,9,1,1,1,9,4,
%T A062539 1,3,6,8,2,7,5,4,9,5,1,4,3,1,6,2,3,1,6,2,8,1,6,8,2,1,7,0,3,8,0,0,7,9,0,
%U A062539 5,8,7,0,7,0,4,1,4,2,5,0,2,3,0,2,9,5,5,3,2,9,6,1,4,2,9,0,9,3,4,4,6,1,3
%N A062539 Decimal expansion of the Lemniscate constant or Gauss' constant.
%H A062539 Harry J. Smith, <a href="b062539.txt">Table of n, a(n) for n=1,...,5000</
               a>
%H A062539 S. Plouffe, <a href="http://pi.lacim.uqam.ca/piDATA/lemni.txt">Lemniscate 
               or Gauss constant(Plouffe's Inverter)</a>
%H A062539 S. Plouffe, <a href="http://www.worldwideschool.org/library/books/sci/
               math/MiscellaneousMathematicalConstants/chap53.html">Lemniscate constant 
               or Gauss constant</a>
%H A062539 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               LemniscateConstant.html">Lemniscate Constant</a>
%F A062539 1/2*Pi^(3/2)/GAMMA(3/4)^2*2^(1/2)
%e A062539 2.622057554292119810464839589891119413682754951431623162816821703...
%t A062539 RealDigits[Pi^(3/2)/Gamma[3/4]^2*2^(1/2)/2, 10, 111][[1]] (from Robert 
               G. Wilson v May 19 2004)
%o A062539 (PARI) print(1/2*Pi^(3/2)/gamma(3/4)^2*2^(1/2))
%o A062539 (PARI) { allocatemem(932245000); default(realprecision, 5080); x=Pi^(3/
               2)*sqrt(2)/(2*gamma(3/4)^2); for (n=1, 5000, d=floor(x); x=(x-d)*10; 
               write("b062539.txt", n, " ", d)); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               Jun 20 2009]
%Y A062539 Cf. A062540, A064853.
%Y A062539 Sequence in context: A082516 A008905 A136760 this_sequence A110218 A057892 
               A115009
%Y A062539 Adjacent sequences: A062536 A062537 A062538 this_sequence A062540 A062541 
               A062542
%K A062539 cons,easy,nonn
%O A062539 1,1
%A A062539 Jason Earls (zevi_35711(AT)yahoo.com), Jun 25 2001