Common prime factors of A007663(183)/1093 and A007663(490)/3511.

A343763

Common prime factors of A007663(183)/1093 and A007663(490)/3511.

Terms

    a(0) =3a(1) =7a(2) =79a(3) =2731a(4) =8191a(5) =121369a(6) =22366891

External references