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A084660 Decimal expansion of solution of area bisectors problem. 0
0, 1, 9, 8, 6, 0, 3, 8, 5, 4, 1, 9, 9, 5, 8, 9, 8, 2, 0, 6, 2, 9, 2, 4, 0, 9, 1, 0, 9, 3, 6, 3, 2, 4, 2, 6, 0, 5, 6, 6, 2, 5, 1, 0, 0, 7, 7, 0, 1, 9, 1, 4, 4, 0, 5, 9, 0, 5, 1, 0, 0, 0, 7, 1, 2, 0, 0, 4, 5, 2, 1, 6, 4, 7, 7, 2, 7, 1, 0, 3, 6, 7, 0, 4, 3, 9, 7, 4, 9, 5, 2, 4, 7, 3, 1, 4, 0, 1, 5, 6, 5, 6, 5 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..102.

Henry Bottomley, Area bisectors of a triangle.

Zak Seidov 3-points in 3-4-5 triangle

FORMULA

3*log(2)/4 - 1/2.

Sum_i{i>0} 1/((4i-1)*4i*(4i+1)) = Sum_i{i>0} 1/A069140(i). - Henry Bottomley, Jul 09 2003

EXAMPLE

0.0198603854199589820629240910936324260566251...

MATHEMATICA

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

CROSSREFS

Sequence in context: A327341 A059068 A059069 * A002391 A193626 A316600

Adjacent sequences:  A084657 A084658 A084659 * A084661 A084662 A084663

KEYWORD

cons,easy,nonn

AUTHOR

Zak Seidov, Jun 28 2003

EXTENSIONS

a(100) corrected by Georg Fischer, Jul 15 2021

STATUS

approved

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Last modified December 1 20:41 EST 2021. Contains 349435 sequences. (Running on oeis4.)