Divisors of 270.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =9a(6) =10a(7) =15a(8) =18a(9) =27a(10) =30a(11) =45a(12) =54a(13) =90a(14) =135a(15) =270