A059768 Numbers k such that 2*3^k + 35 is prime.

0, 1, 2, 3, 4, 5, 6, 7, 11, 20, 27, 28, 34, 63, 77, 125, 237, 255, 272, 332, 389, 848, 1148, 1216, 1391, 1426, 1767, 2254, 2534, 2722, 3989, 5029, 5375, 6125, 6607, 27286

Offset

1,3

Comments

a(36) > 21662. - Jinyuan Wang, Jan 20 2020

Links

Table of n, a(n) for n=1..36.

Mathematica

Do[ If[ PrimeQ[ 2*3^n + 35 ], Print[n] ], {n, 0, 6700} ]

Prog

(PARI) is(n)=ispseudoprime(2*3^n+35) \\ Charles R Greathouse IV, Jun 13 2017
(Magma) [n: n in [0..1000] | IsPrime(2*3^n+35)]; // Jinyuan Wang, Jan 20 2020

Crossrefs

Sequence in context: A103539 A174821 A033086 * A271835 A118599 A178531

Adjacent sequences: A059765 A059766 A059767 * A059769 A059770 A059771

Keyword

nonn,more

Author

Robert G. Wilson v, Feb 21 2001

Extensions

a(36) from Michael S. Branicky, Apr 30 2023

Status

approved