Divisors of 684.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =9a(6) =12a(7) =18a(8) =19a(9) =36a(10) =38a(11) =57a(12) =76a(13) =114a(14) =171a(15) =228a(16) =342a(17) =684