A377935 Decimal expansion of the area enclosed by the locus of the centroid of a Reuleaux triangle.

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

Offset

-1,1

Links

Table of n, a(n) for n=-1..84.

Eric Weisstein's World of Mathematics, Reuleaux Triangle.

Formula

Equals 4 - 8/sqrt(3) + 2*Pi/9.

Equals (4/9)*(Pi - 3*A066666).

Example

0.0793295472807257146962860633...

Mathematica

RealDigits[4 - 8/Sqrt[3] + (2*(Pi/9)), 10, 100][[1]]

Crossrefs

Cf. A066666.

Sequence in context: A001903 A011345 A201770 * A086282 A335705 A156000

Adjacent sequences: A377932 A377933 A377934 * A377936 A377937 A377938

Keyword

nonn,cons

Author

Kritsada Moomuang, Nov 11 2024

Status

approved