login
A127205
Decimal expansion of 81*sqrt(3)/(8*Pi^3).
0
5, 6, 5, 5, 9, 5, 6, 2, 4, 6, 3, 6, 1, 3, 1, 1, 1, 3, 1, 0, 0, 1, 0, 9, 0, 3, 7, 2, 8, 3, 9, 1, 5, 6, 3, 5, 4, 5, 5, 8, 9, 7, 5, 1, 0, 6, 4, 1, 2, 1, 8, 0, 3, 5, 5, 3, 1, 5, 8, 7, 6, 5, 7, 0, 3, 6, 0, 7, 0, 6, 5, 4, 3, 7, 1, 6, 6, 7, 4, 0, 8, 1, 4, 1, 3, 7, 2, 9, 4, 7, 4, 8, 3, 5, 5, 3, 1, 0, 7, 5, 1, 5, 0, 4, 4
OFFSET
0,1
COMMENTS
The maximum value of sin(A)*sin(B)*sin(C)/(A*B*C), where A, B and C are the vertex angles of a triangle (Abi-Khuzam, 1974). - Amiram Eldar, Jun 27 2021
LINKS
Faruk Abi-Khuzam, Proof of Yff's conjecture on the Brocard angle of a triangle, Elem. Math., Vol. 29 (1974), pp. 141-142.
Eric Weisstein's World of Mathematics, Abi-Khuzam Inequality.
EXAMPLE
0.56559562463613111310...
MATHEMATICA
RealDigits[(81Sqrt[3])/(8Pi^3), 10, 120][[1]] (* Harvey P. Dale, Apr 15 2012 *)
PROG
(PARI) 81*sqrt(3)/8/Pi^3 \\ Charles R Greathouse IV, Oct 01 2022
CROSSREFS
Sequence in context: A087496 A198742 A106704 * A006944 A010717 A046603
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Jan 08 2007
STATUS
approved