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A140246 Decimal expansion of sqrt(15)/6. 11
6, 4, 5, 4, 9, 7, 2, 2, 4, 3, 6, 7, 9, 0, 2, 8, 1, 4, 1, 9, 6, 5, 4, 4, 2, 3, 3, 2, 9, 7, 0, 6, 6, 6, 0, 1, 8, 0, 5, 4, 8, 6, 9, 5, 0, 8, 8, 1, 9, 3, 1, 8, 0, 4, 4, 3, 1, 2, 6, 2, 2, 9, 4, 3, 5, 2, 2, 4, 7, 1, 8, 1, 9, 8, 9, 4, 9, 6, 5, 0, 5, 5, 8, 6, 5, 4, 7, 8, 9, 6, 1, 4, 3, 1, 1, 2, 2, 5, 2, 9, 8, 6, 0, 5, 0 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Inradius of the obtuse scalene triangle with sides of lengths 2, 3 and 4, the scalene triangle with least integer side lengths. Per the Weisstein link, the inradius is the area divided by the semiperimeter.

LINKS

Table of n, a(n) for n=0..104.

Eric Weisstein's World of Mathematics, Inradius.

FORMULA

sqrt(15)/6 = A010472/6 = 2*A140239/9.

EXAMPLE

0.64549722436790281419654423329706660180548695088193180443126229435224718198...

MATHEMATICA

RealDigits[Sqrt[15]/6, 10, 120][[1]] (* Harvey P. Dale, Mar 31 2013 *)

PROG

(PARI) sqrt(15)/6

CROSSREFS

Cf. A140239, A140240, A140241, A140242, A140243, A140244, A140245, A140247, A140248, A140249, A088543, A010472.

Sequence in context: A021159 A106332 A247319 * A130786 A197295 A199385

Adjacent sequences:  A140243 A140244 A140245 * A140247 A140248 A140249

KEYWORD

cons,nonn

AUTHOR

Rick L. Shepherd, May 14 2008

STATUS

approved

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Last modified October 22 00:49 EDT 2019. Contains 328315 sequences. (Running on oeis4.)