OFFSET
0,3
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..10000
Henry Bottomley, Area bisectors of a triangle.
Zak Seidov 3-points in 3-4-5 triangle
FORMULA
Equals (3*log(2) - 2)/4.
Sum_{i>0} 1/((4i-1)*4i*(4i+1)) = Sum_{i>0} 1/A069140(i). - Henry Bottomley, Jul 09 2003
EXAMPLE
0.0198603854199589820629240910936324260566251...
MATHEMATICA
Join[{0}, RealDigits[N[3/4*Log[2]-1/2, 108]][[1]]] (* Georg Fischer, Jul 15 2021 *)
PROG
(PARI) 3*log(2)/4-1/2 \\ Charles R Greathouse IV, Apr 13 2020
(Magma) SetDefaultRealField(RealField(119)); Log(8/Exp(2))/4 // G. C. Greubel, Mar 22 2023
(SageMath) numerical_approx(log(8/exp(2))/4, digits=119) # G. C. Greubel, Mar 22 2023
CROSSREFS
KEYWORD
AUTHOR
Zak Seidov, Jun 28 2003
EXTENSIONS
a(100) corrected by Georg Fischer, Jul 15 2021
STATUS
approved