Primes of the form k*6^m - 1, where k is a Mersenne prime (A000668) and m >= 0.
A186687
Primes of the form k*6^m - 1, where k is a Mersenne prime (A000668) and m >= 0.
Terms
- a(0) =2a(1) =17a(2) =41a(3) =107a(4) =251a(5) =647a(6) =761a(7) =1511a(8) =23327a(9) =27431a(10) =139967a(11) =3145721a(12) =30233087a(13) =35551871a(14) =6530347007a(15) =39182082047a(16) =91424858111a(17) =146766805631
External references
- oeis: A186687