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A249538 Decimal expansion of 3*sqrt(Pi), the average perimeter of a random Gaussian triangle in two dimensions. 3
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 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..5000

Steven R. Finch, Random Triangles, January 21, 2010. [Cached copy, with permission of the author]

Eric Weisstein's MathWorld, Gaussian Triangle Picking

EXAMPLE

5.317361552716548081894502450023435548392648368367161...

MATHEMATICA

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

PROG

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

CROSSREFS

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

Sequence in context: A011505 A179975 A019926 * A322932 A259619 A111498

Adjacent sequences:  A249535 A249536 A249537 * A249539 A249540 A249541

KEYWORD

nonn,cons,easy

AUTHOR

Jean-François Alcover, Oct 31 2014

STATUS

approved

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Last modified December 7 09:15 EST 2021. Contains 349574 sequences. (Running on oeis4.)