A245670 Decimal expansion of 28*sqrt(3) - 48.

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

Offset: 0

Author

Rick L. Shepherd, Jul 28 2014

Keywords

• cons
• nonn

Comments

Construct the largest possible square inside a given equilateral triangle. This constant is the ratio of the area of the square to the area of the triangle.

Examples

			0.4974226119285642187684975621644262743985...
		

Crossrefs

Cf. A002194.

Programs

Mathematica

RealDigits[28*Sqrt[3]-48,10,120][[1]] (* Harvey P. Dale, Oct 14 2015 *)

PARI

default(realprecision, 120);
28*sqrt(3)-48

Formula

28*sqrt(3) - 48 = 28*A002194 - 48.