a(n) is the largest proper divisor of the Mersenne composite A065341(n).

A145097

a(n) is the largest proper divisor of the Mersenne composite A065341(n).

Terms

    a(0) =89a(1) =178481a(2) =2304167a(3) =616318177a(4) =164511353a(5) =20408568497a(6) =59862819377a(9) =761838257287

External references