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A179021
Decimal expansion of sqrt(231)/4.
1
3, 7, 9, 9, 6, 7, 1, 0, 3, 8, 3, 9, 2, 6, 6, 5, 9, 0, 7, 9, 1, 7, 1, 8, 6, 0, 5, 1, 5, 0, 9, 9, 1, 1, 2, 5, 9, 3, 9, 5, 5, 8, 1, 6, 1, 5, 4, 2, 5, 5, 5, 9, 0, 7, 9, 1, 9, 9, 1, 4, 0, 5, 9, 6, 3, 0, 0, 9, 1, 0, 9, 7, 0, 5, 1, 3, 8, 5, 9, 2, 2, 7, 5, 7, 8, 0, 1, 7, 9, 0, 4, 1, 8, 8, 0, 2, 7, 4, 3, 1, 0, 7, 7, 5, 0
OFFSET
1,1
COMMENTS
Area of the obtuse scalene triangle with sides of lengths 2, 4 and 5. Second smallest area of triangle with distinct integer sides.
EXAMPLE
3.79967103839266590791718605150991125939558161542555907919914059630091...
MATHEMATICA
a=2; b=4; c=5; s=(a+b+c)/2; area=Sqrt[s*(s-a)*(s-b)*(s-c)]; RealDigits[N[area, 200]]
RealDigits[Sqrt[231]/4, 10, 120][[1]] (* Harvey P. Dale, Apr 08 2018 *)
CROSSREFS
Cf. A140239.
Sequence in context: A365317 A347926 A331066 * A096910 A182389 A279615
KEYWORD
nonn,cons
AUTHOR
STATUS
approved