Timeline for Quadratic progressions with very high prime density
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 12 at 13:35 | comment | added | Ilya Zakharevich | @VincentGranville: I think you are confused. It is not 163, but ‒163, and it is important not for linear, but for quadratic “progressions”! Just calculate the discriminant of the Euler polynomial $x²+x+41$. | |
| Oct 31, 2020 at 14:32 | comment | added | Vincent Granville | I noticed you are the author for the OEIS entry A331947. Congratulations! Maybe one day, I'll have one of my sequences listed there as well. | |
| Oct 31, 2020 at 14:28 | vote | accept | Vincent Granville | ||
| Oct 30, 2020 at 17:47 | comment | added | Vincent Granville | Thank you, very interesting. Yes there is definitely something special about $398$ like there is something special about $163$ for arithmetic progressions. | |
| Oct 30, 2020 at 14:30 | history | answered | Hugo Pfoertner | CC BY-SA 4.0 |