A263151 Decimal expansion of the ratio of the length of the latus rectum arc of any parabola to its focal length: sqrt(8) + log(3 + sqrt(8)).

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

Offset: 1

Author

Martin Janecke, Oct 11 2015

Keywords

• cons
• easy
• nonn

Comments

Twice the universal parabolic constant A103710.

Examples

			4.591174298785276148068596098378980775195664407277166967859950693...
		

Links

• Index entries for transcendental numbers

Crossrefs

Equals twice A103710. Equals A010466 + A244920.

Programs

Mathematica

First@ RealDigits[N[# + Log[3 + #] &@ Sqrt@ 8, 102]] (* Michael De Vlieger, Oct 11 2015 *)

PARI

sqrt(8) + log(3 + sqrt(8)) \\ Michel Marcus, Oct 11 2015