Smallest prime which is 1 more than the product of n (not necessarily distinct) composite numbers.

A081546

Smallest prime which is 1 more than the product of n (not necessarily distinct) composite numbers.

Terms

    a(0) =2a(1) =5a(2) =17a(3) =97a(4) =257a(5) =3457a(6) =12289a(7) =40961a(8) =65537a(9) =786433a(10) =5308417a(11) =14155777a(12) =104857601a(13) =167772161a(14) =1811939329a(15) =3221225473a(16) =24159191041a(17) =77309411329a(18) =206158430209

External references