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%I #13 Mar 06 2021 10:43:27
%S 2,9,1,4,6,4,7,4,8,9,0,6,6,2,6,6,1,8,0,1,0,7,1,0,9,6,3,1,0,7,5,6,0,5,
%T 9,3,7,5,0,4,3,6,7,9,4,0,9,5,8,3,3,2,1,9,7,4,6,7,1,6,5,7,6,1,0,5,2,6,
%U 7,4,9,0,0,8,2,8,2,3,2,8,0,1,0,4,3,5,0,3,3,9,0,8,5,5,8,0,9,8,8,6,5,4,6,6,4
%N Decimal expansion of harmonic mean of Pi and e.
%F Equals 2/(1/Pi + 1/e).
%e 2.91464748906626618...
%t RealDigits[HarmonicMean[{Pi,E}],10,120][[1]] (* _Harvey P. Dale_, Jul 05 2020 *)
%o (PARI) 2/(1/Pi + 1/exp(1)) \\ _Michel Marcus_, Oct 03 2013
%Y Cf. A000796 (Pi), A001113 (e), A074916, A074917, A074921.
%K nonn,cons
%O 1,1
%A _Zak Seidov_, Oct 05 2002
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