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%I #9 Jun 30 2020 05:35:29
%S 7,4,0,7,3,4,6,5,6,6,3,1,6,9,5,0,5,5,7,8,8,8,7,6,3,8,3,8,0,3,6,4,5,8,
%T 3,7,5,7,8,6,4,9,4,8,7,8,4,0,4,2,0,3,0,9,2,6,6,7,2,0,2,6,1,1,1,5,2,4,
%U 1,0,3,6,3,8,9,9,2,7,3,0,4,7,0,3,4,2,1,3,3,6,9,3,5,1,6,9,6,0,0,5,7,6
%N Decimal expansion of the difference between Pi/8 (A019675) and A091473.
%C Is there a closed-form expression for this constant?
%H David H. Bailey, Jonathan M. Borwein, Vishaal Kapoor and Eric W. Weisstein, <a href="https://www.jstor.org/stable/27641975">Ten problems in experimental mathematics</a>, The American Mathematical Monthly, Vol. 113, No. 6 (2006), pp. 481-509, <a href="https://www.osti.gov/servlets/purl/878698-lOyY0w/">alternative link</a>.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/DefiniteIntegral.html">Definite Integral</a>
%e 7.407346566316950557...*10^-43
%Y Cf. A019675, A091473.
%K nonn,cons
%O -42,1
%A _Eric W. Weisstein_, Jan 15 2004
%E Additional digits from Michael Trott (mtrott(AT)wolfram.com), Jan 22 2004
%E Offset corrected by _Amiram Eldar_, Jun 30 2020
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