The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

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