Each term is the smallest positive integer both coprime to all earlier terms of the sequence and with a different number of divisors than all earlier terms. (a(1)=1.)

A175261

Each term is the smallest positive integer both coprime to all earlier terms of the sequence and with a different number of divisors than all earlier terms. (a(1)=1.)

Terms

    a(0) =1a(1) =2a(2) =9a(3) =35a(4) =1573a(5) =7429a(6) =707281a(7) =1315609a(8) =3397301a(9) =12780049a(10) =1855052713

External references