Numbers n such that 221*2^n-1 is prime.

A050862

Numbers n such that 221*2^n-1 is prime.

Terms

    a(0) =2a(1) =6a(2) =42a(3) =354a(4) =402a(5) =914a(6) =1562a(7) =10382a(8) =34986a(9) =81042a(10) =104846

External references