Smallest prime p such that M(n)^2-p*M(n)-1 is prime with M(n)= Mersenne primes =A000668(n).

A139428

Smallest prime p such that M(n)^2-p*M(n)-1 is prime with M(n)= Mersenne primes =A000668(n).

Terms

    a(0) =5a(1) =7a(2) =5a(3) =17a(4) =43a(5) =67a(6) =41a(7) =53a(8) =311a(9) =317a(10) =317a(11) =43a(12) =1427a(13) =37a(14) =25693a(15) =563a(16) =17239a(17) =911a(18) =11497a(19) =112247a(20) =1259a(21) =190639a(22) =138569a(23) =296713a(24) =27733a(25) =11777

External references