A074950 Decimal expansion of harmonic mean of Pi and e.

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, 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, 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

Offset

1,1

Links

Table of n, a(n) for n=1..105.

Formula

Equals 2/(1/Pi + 1/e).

Example

2.91464748906626618...

Mathematica

RealDigits[HarmonicMean[{Pi, E}], 10, 120][[1]] (* Harvey P. Dale, Jul 05 2020 *)

Prog

(PARI) 2/(1/Pi + 1/exp(1)) \\ Michel Marcus, Oct 03 2013

Crossrefs

Cf. A000796 (Pi), A001113 (e), A074916, A074917, A074921.

Sequence in context: A190142 A173995 A272868 * A346170 A113211 A244807

Adjacent sequences: A074947 A074948 A074949 * A074951 A074952 A074953

Keyword

nonn,cons

Author

Zak Seidov, Oct 05 2002

Status

approved