login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A321323 Numbers n such that n^(2^20) + 1 is prime (a generalized Fermat prime). 0
1, 919444, 1059094 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..3.

Chris K. Caldwell, The Prime Database: 919444^1048576 + 1

Chris K. Caldwell, The Prime Database: 1059094^1048576 + 1

CROSSREFS

Cf. A243959, A244150, A253854, A251597, A226530, A226529.

Sequence in context: A259005 A256903 A185532 * A156428 A251954 A098208

Adjacent sequences:  A321320 A321321 A321322 * A321324 A321325 A321326

KEYWORD

nonn,hard,more,bref

AUTHOR

Jeppe Stig Nielsen, Nov 04 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 | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 20 02:57 EST 2018. Contains 317371 sequences. (Running on oeis4.)