The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A062693 Squarefree n such that the elliptic curve n*y^2 = x^3 - x arising in the "congruent number" problem has rank 3. 4
 1254, 2605, 2774, 3502, 4199, 4669, 4895, 6286, 6671, 7230, 7766, 8005, 9015, 9430, 9654, 10199, 10549, 11005, 11029, 12166, 12270, 12534, 12935, 13317, 14965, 15655, 16151, 16206, 16887, 17958, 18221, 19046, 19726, 20005, 20366 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Conjectural, as detailed in the pages from which it is extracted (see the first few links at the web site mentioned for details), but the conjecture is supported by much numerical and theoretical evidence. LINKS A. Dujella, A. S.Janfeda, S. Salami, A Search for High Rank Congruent Number Elliptic Curves, JIS 12 (2009) 09.5.8. Fidel Ronquillo Nemenzo, All congruent numbers less than 40000, Proc. Japan Acad. Ser. A Math. Sci., Volume 74, Number 1 (1998), 29-31. See Table IV p. 31. PROG (PARI) r(n)=ellanalyticrank(ellinit([0, 0, 0, -n^2, 0]))[1] for(n=1, 1e4, if(r(n)==3, print1(n", "))) \\ Charles R Greathouse IV, Sep 01 2011 CROSSREFS Cf. A062694, A062695. Sequence in context: A252157 A252150 A023068 * A067203 A230544 A280928 Adjacent sequences:  A062690 A062691 A062692 * A062694 A062695 A062696 KEYWORD nonn AUTHOR Noam D. Elkies, Jul 04 2001 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 January 23 17:33 EST 2022. Contains 350514 sequences. (Running on oeis4.)