A179047 Decimal expansion of 9*sqrt(3)/4, the area of an equilateral triangle of side length 3.

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

Offset

1,1

Links

Table of n, a(n) for n=1..105.

Example

3.89711431702997391043675426838821282562131182107335641312556570376684...

Mathematica

a=b=c=3; area=Sqrt[(a+b-c)*(a-b+c)*(-a+b+c)*(a+b+c)]/4; RealDigits[N[area, 200]]

Crossrefs

Cf. A002194, A010502, A120011.

Sequence in context: A011276 A021882 A079591 * A185067 A256955 A197040

Adjacent sequences: A179044 A179045 A179046 * A179048 A179049 A179050

Keyword

nonn,cons,easy

Author

Vladimir Joseph Stephan Orlovsky, Jun 26 2010

Status

approved