A249538 Decimal expansion of 3*sqrt(Pi), the average perimeter of a random Gaussian triangle in two dimensions.

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

Offset: 1

Author

Jean-François Alcover, Oct 31 2014

Keywords

• nonn
• cons
• easy

Examples

			5.317361552716548081894502450023435548392648368367161...
		

Links

• G. C. Greubel, Table of n, a(n) for n = 1..5000
• Steven R. Finch, Random Triangles, Jan 21 2010. [Cached copy, with permission of the author]
• Eric Weisstein's MathWorld, Gaussian Triangle Picking
• Index entries for transcendental numbers

Crossrefs

Cf. A002161 (average side length in two dimensions), A102556, A102557.

Programs

Mathematica

RealDigits[3*Sqrt[Pi], 10, 105] // First

PARI

3*sqrt(Pi) \\ G. C. Greubel, Jan 09 2017