A290022 Prime numbers of the form 6^k - 7.

29, 1289, 46649, 1679609, 10077689, 60466169, 470184984569, 3656158440062969, 623673825204293256669089197883129849, 134713546244127343440523266742756048889, 293242067884135544935936513642647623193965101049

Offset: 1

Author

Robert Price, Sep 03 2017

Keywords

• nonn

Links

• Robert Price, Table of n, a(n) for n = 1..14
• F. Firoozbakht, M. F. Hasler, Variations on Euclid's formula for Perfect Numbers, JIS 13 (2010) #10.3.1.
• Henri & Renaud Lifchitz, PRP Records
• OpenPFGW Project, Primality Tester

Crossrefs

Cf. A217352.

Programs

Mathematica

Select[Table[6^k - 7, {k, 2, 100}], PrimeQ[#] &]