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A243438 Primes of the form 3^n + 22. 2
23, 31, 103, 751, 4782991, 282429536503, 50031545098999729, 49269609804781974438694403402127765889 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Associated n: 0, 2, 4, 6, 14, 24, 35, 79, 178, 186, 230, ...

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..18

MATHEMATICA

Select[Table[3^n + 22, {n, 0, 500}], PrimeQ]

PROG

(MAGMA) [a: n in [0..200] | IsPrime(a) where a is 3^n+22];

CROSSREFS

Cf. similar sequences listed in A102903.

Sequence in context: A165450 A155074 A105007 * A154291 A109559 A231401

Adjacent sequences:  A243435 A243436 A243437 * A243439 A243440 A243441

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Jun 05 2014

STATUS

approved

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Last modified September 19 00:22 EDT 2021. Contains 347549 sequences. (Running on oeis4.)