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%I #10 Jul 25 2015 00:40:07
%S 4,6,6,9,2,0,1,9,3,1,8,5,9,9,0,7,7,3,1,5,5,8,8,5,2,6,2,6,0,8,2,3,9,7,
%T 8,7,4,5,5,7,3,1,5,7,1,2,5,4,9,3,2,2,9,8,0,1,2,6,8,7,1,9,7,4,3,6,0,8,
%U 5,1,7,6,6,1,2,1,9,2,2,6,2,5,4,2,5,9,0,4,6,9,9,2,7,3,1,4,8,8,0,9,1,0,3,8,3
%N Decimal expansion of Pi + arctan(e^Pi).
%C This is an approximation to the Feigenbaum constant.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/FeigenbaumConstant.html">Feigenbaum constant</a>.
%e 4.669201931859907731558852626...
%t RealDigits[Pi + ArcTan[E^Pi], 10, 120][[1]] (* _Robert G. Wilson v_, May 04 2004 *)
%Y Cf. A006890, A039661.
%K nonn,cons
%O 1,1
%A Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Apr 30 2004
%E More terms from _Klaus Brockhaus_ and _Robert G. Wilson v_, May 03 2004
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