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A353102 Primes of the form 2^k + 3^k + 6. 1
11, 19, 41, 103, 281, 6823, 20201, 14381681, 387682639, 94151567441, 282446313703, 5559069156490121, 16677198879535759, 50031579458738081, 984770919775797277303, 1144561273440060866922804472241, 969773729787523912361831763509149540341223, 2909321189362571427600485469182379896242601 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: There are infinitely many primes of the form 2^k + 3^k + 6.

LINKS

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

EXAMPLE

2^1 + 3^1 + 6 = 11, which is a prime.

2^2 + 3^2 + 6 = 19, which is a prime.

MATHEMATICA

Select[Table[2^n + 3^n + 6, {n, 1, 1000}], PrimeQ]

CROSSREFS

Cf. A075996.

Sequence in context: A100557 A066591 A061246 * A068493 A167535 A184328

Adjacent sequences:  A353099 A353100 A353101 * A353103 A353104 A353105

KEYWORD

nonn

AUTHOR

Hemjyoti Nath, Apr 23 2022

STATUS

approved

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Last modified August 13 16:07 EDT 2022. Contains 356107 sequences. (Running on oeis4.)