A290006 Primes of the form 3^k + 34.

37, 43, 61, 277, 2221, 19717, 59083, 129140197, 7625597485021, 16677181699666603, 2153693963075557766310781, 1570042899082081611640534597, 127173474825648610542883299637, 2909321189362570808630465826492242446680517

Offset: 1

Author

Robert Price, Sep 03 2017

Keywords

• nonn

Links

• Robert Price, Table of n, a(n) for n = 1..16
• 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

Crossrefs

Cf. A000040, A219050 (corresponding k's).

Programs

Mathematica

Select[Table[3^k+34, {k, 0, 100}], PrimeQ[#] &]

Formula

a(n) = 3^A219050(n) + 34. - Elmo R. Oliveira, Nov 12 2023