A291860 Prime numbers of the form 7^k - 8.

41, 2393, 5764793, 282475241, 1798465042647412146620280340569649349251241, 380532926880843152923706465386871407580539099147930273794471851842901108534824949331057641

Offset: 1

Author

Robert Price, Sep 04 2017

Keywords

• nonn

Links

• Robert Price, Table of n, a(n) for n = 1..7
• F. Firoozbakht and 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. A217131.

Programs

Mathematica

Select[Table[7^k - 8, {k, 2, 100}], PrimeQ[#] &]