Greater prime factor of semiprimes in A090159.

A090160

Greater prime factor of semiprimes in A090159.

Terms

    a(0) =5a(1) =11a(2) =103a(3) =71a(4) =661a(5) =329891a(6) =75024347a(7) =3790360487a(9) =117876683047

External references