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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A274235 Numbers n such that n^2048 + (n+1)^2048 is prime. 3
754, 1289, 1368, 1813, 3159, 3280, 3301, 4976, 6204, 6283, 6723, 6904, 7141, 10246, 11417, 13268, 15456, 19428, 19683, 19698, 20298, 21484, 22543, 23702, 23815, 24747, 27010, 32319, 34133, 36201, 37030, 39438, 41292, 44472, 47623, 50198, 51031, 51370, 51521, 52628, 53073, 53309, 53767, 55911, 56630, 59424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The terms correspond only to probable primes.

LINKS

Table of n, a(n) for n=1..46.

Richard Fischer, Primzahlen mit der Form (B+1)^N+B^N.

Henri Lifchitz & Renaud Lifchitz, Search for : x^2048+y^2048.

MATHEMATICA

Select[Range[1, 10000], PrimeQ[#^2048 + (#+1)^2048] &]

PROG

(PARI) for(n=1, 10000, if(isprime(n^2048 + (n+1)^2048), print1(n, ", ")))

(MAGMA) [n: n in [1..10000] |IsPrime(n^2048 + (n+1)^2048)]

CROSSREFS

Cf. A005097, A027861, A155211, A153504, A154535, A174156, A174157, A215431, A215432, A215433, A274234, A274236, A274237.

Sequence in context: A251330 A092449 A197107 * A304608 A252913 A252917

Adjacent sequences:  A274232 A274233 A274234 * A274236 A274237 A274238

KEYWORD

nonn

AUTHOR

Tim Johannes Ohrtmann, Jun 15 2016

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 22 03:41 EST 2019. Contains 329387 sequences. (Running on oeis4.)