A257896 Decimal expansion of (Pi-arctan(e))/(2*Pi).

3, 0, 6, 1, 0, 4, 2, 5, 3, 5, 8, 2, 1, 4, 6, 2, 4, 9, 4, 7, 5, 4, 8, 4, 2, 9, 4, 8, 1, 2, 7, 6, 2, 2, 0, 5, 7, 9, 8, 9, 0, 7, 3, 9, 5, 9, 9, 7, 3, 4, 8, 2, 3, 4, 6, 2, 1, 6, 6, 9, 4, 5, 7, 2, 3, 0, 5, 0, 7, 3, 7, 6, 1, 5, 9, 9, 7, 0, 9, 7, 3, 5, 3, 6, 6, 6, 7, 2, 3, 7, 5, 7, 6, 5, 7, 9, 0, 2, 4, 0, 5, 4, 2, 1, 7

Offset: 0

Author

Stanislav Sykora, May 12 2015

Keywords

• nonn
• cons
• easy

Comments

Fraction of the horizon obstructed by the exponential curve y=exp(x) when viewed from the origin.

Examples

			0.3061042535821462494754842948127622057989073959973482346216694572...
		

Links

• Stanislav Sykora, Table of n, a(n) for n = 0..2000

Crossrefs

Cf. A000796, A257777.

Programs

Mathematica

RealDigits[(Pi-ArcTan[E])/(2Pi),10,120][[1]] (* Harvey P. Dale, Oct 23 2017 *)

PARI

(Pi-atan(exp(1)))/(2*Pi)

Formula

Equals 1/2 - A257777/(2*Pi).