The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A241947 Numbers n for which A241927(n) = 2. 2
 1, 2, 3, 4, 5, 6, 8, 20 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS If the sequence contains no perfect squares>4, then the Goldbach conjecture in Fermi-Dirac arithmetic (FDGC) is true (see comment in A241927). Essentially, the sequence is the Fermi-Dirac analog of A100570. Since A100570 is conjecturally finite, it is natural to suppose that this sequence is also finite. There is not another term up to 10^6. - Peter J. C. Moses, May 05 2014 Thus, if 20 is the last term of the sequence, then the FDGC is true. - Vladimir Shevelev, May 05 2014 LINKS Table of n, a(n) for n=1..8. CROSSREFS Cf. A241927, A241922, A100570. Sequence in context: A081710 A364455 A358175 * A128421 A115885 A259390 Adjacent sequences: A241944 A241945 A241946 * A241948 A241949 A241950 KEYWORD nonn,more AUTHOR Vladimir Shevelev, May 03 2014 EXTENSIONS Name corrected by Michel Marcus, Dec 14 2018 STATUS approved

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

Last modified May 29 04:26 EDT 2024. Contains 372921 sequences. (Running on oeis4.)