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A243432 Primes of the form 2^n + 47. 2
79, 822752278660603021077484591278675252491367932816789931674304559 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term has 316 digits (see b-file).

Associated n: 5, 209, 1049.

Also a probable prime for n = 8501 and no others below 10^5. - Jens Kruse Andersen, Jun 30 2014

LINKS

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

MATHEMATICA

Select[Table[2^n + 47, {n, 0, 600}], PrimeQ]

PROG

(MAGMA) [a: n in [0..600] | IsPrime(a) where a is 2^n+47];

CROSSREFS

Cf. similar sequences listed in A243429.

Sequence in context: A116327 A060711 A128472 * A093404 A236236 A031136

Adjacent sequences:  A243429 A243430 A243431 * A243433 A243434 A243435

KEYWORD

nonn,bref

AUTHOR

Vincenzo Librandi, Jun 05 2014

STATUS

approved

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Last modified April 12 18:58 EDT 2021. Contains 342932 sequences. (Running on oeis4.)