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This is an approximation to the Feigenbaum constant.
Table of n, a(n) for n=1..105.
Eric Weisstein's World of Mathematics, Feigenbaum constant.
RealDigits[Pi + ArcTan[E^Pi], 10, 120][] (* Robert G. Wilson v, May 04 2004 *)
Cf. A006890, A039661.
Sequence in context: A028327 A006890 A104123 * A016122 A247677 A201775
Adjacent sequences: A094075 A094076 A094077 * A094079 A094080 A094081
Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Apr 30 2004
More terms from Klaus Brockhaus and Robert G. Wilson v, May 03 2004