A243439 Primes of the form 3^k + 26.

29, 53, 107, 269, 2213, 19709, 177173, 43046747, 282429536507, 22876792454987, 239299329230617529590109, 19383245667680019896796749, 1144561273430837494885949696453, 969773729787523602876821942164080815560187

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..27

Formula

a(n) = 3^A219044(n) + 26. - Elmo R. Oliveira, Nov 12 2023

Mathematica

Select[Table[3^n + 26, {n, 0, 500}], PrimeQ]

Prog

(Magma) [a: n in [0..200] | IsPrime(a) where a is 3^n+26];

Crossrefs

Cf. A000040, A219044 (corresponding k's).

Cf. Similar sequences listed in A102903.

Sequence in context: A054822 A034847 A139925 * A216497 A139877 A290706

Adjacent sequences: A243436 A243437 A243438 * A243440 A243441 A243442

Keyword

nonn

Author

Vincenzo Librandi, Jun 05 2014

Status

approved