Primes of the form k*2^(k-1) - 1.

A236752

Primes of the form k*2^(k-1) - 1.

Terms

    a(0) =3a(1) =11a(2) =31a(3) =79a(4) =191a(5) =5119a(6) =245759a(7) =524287a(8) =1114111a(9) =3758096383

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