A289725 Primes of the form 3^k - 26.

2161, 59023, 1594297, 31381059583, 7625597484961, 205891132094623, 1570042899082081611640534537, 381520424476945831628649898783, 66555937033867822607895549241096482953017615834735226137

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..10

F. Firoozbakht and M. F. Hasler, Variations on Euclid's formula for Perfect Numbers, JIS 13 (2010) #10.3.1.

Henri and Renaud Lifchitz, PRP Records

OpenPFGW Project, Primality Tester

Mathematica

Select[Table[3^k - 26], {k, 3, 100}], PrimeQ[#] &]

Prog

a(n) = 3^A219045(n) - 26. - Elmo R. Oliveira, Nov 12 2023

Crossrefs

Cf. A000040, A219045 (corresponding k's).

Sequence in context: A154822 A061335 A159238 * A116074 A252563 A035872

Adjacent sequences: A289722 A289723 A289724 * A289726 A289727 A289728

Keyword

nonn

Author

Robert Price, Sep 02 2017

Status

approved