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A309209 Continued fraction expansion of the negation of the constant defined by A265011 (among other formulas, this is Sum_{k >= 1} arctan((-1)^k/k)). 1

%I #20 Aug 30 2019 21:49:28

%S -1,2,36,1,40,1,94,1,1

%N Continued fraction expansion of the negation of the constant defined by A265011 (among other formulas, this is Sum_{k >= 1} arctan((-1)^k/k)).

%H W. M. Gosper, <a href="/A309204/a309204.pdf">Material from Bill Gosper's Computers & Math talk, M.I.T., 1989</a>, i+38+1 pages, annotated and scanned, included with the author's permission. (There are many blank pages because about half of the original pages were two-sided, half were one-sided.) See page 8.

%Y Cf. A265011.

%K sign,cofr,more

%O 0,2

%A _N. J. A. Sloane_, Jul 29 2019; definition corrected Jul 30 2019 (Thanks to _Jianing Song_ for pointing out that something was wrong.)

%E Name corrected by _Jianing Song_, Aug 30 2019

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Last modified April 19 16:38 EDT 2024. Contains 371794 sequences. (Running on oeis4.)