Divisors of 870.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =10a(6) =15a(7) =29a(8) =30a(9) =58a(10) =87a(11) =145a(12) =174a(13) =290a(14) =435a(15) =870