%I A072334
%S A072334 7,3,8,9,0,5,6,0,9,8,9,3,0,6,5,0,2,2,7,2,3,0,4,2,7,4,6,0,5,7,5,0,0,
%T A072334 7,8,1,3,1,8,0,3,1,5,5,7,0,5,5,1,8,4,7,3,2,4,0,8,7,1,2,7,8,2,2,5,2,
%U A072334 2,5,7,3,7,9,6,0,7,9,0,5,7,7,6,3,3,8,4,3,1,2,4,8,5,0,7,9,1,2,1,7,9
%N A072334 Decimal expansion of e^2.
%H A072334 Harry J. Smith, <a href="b072334.txt">Table of n, a(n) for n=1,...,20000</
               a>
%H A072334 John Cosgrave, <a href="http://www.spd.dcu.ie/johnbcos/esquared.htm">
               e^2 is irrational</a>
%F A072334 Equals sum_{n>=0}(sum_{k>=0} 1/(n!*k!)). - Fredrik Johansson (fredrik.johansson(AT)gmail.com), 
               Apr 21 2006
%e A072334 7.389056098930650...
%o A072334 (PARI) { default(realprecision, 20080); x=exp(2); for (n=1, 20000, d=floor(x); 
               x=(x-d)*10; write("b072334.txt", n, " ", d)); } [From Harry J. Smith 
               (hjsmithh(AT)sbcglobal.net), Apr 30 2009]
%Y A072334 Sequence in context: A019726 A011330 A093587 this_sequence A003957 A021579 
               A139788
%Y A072334 Adjacent sequences: A072331 A072332 A072333 this_sequence A072335 A072336 
               A072337
%K A072334 nonn,cons
%O A072334 1,1
%A A072334 N. J. A. Sloane (njas(AT)research.att.com), Jul 15 2002
%E A072334 Fixed my PARI program, had -n Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               May 19 2009