Divisors of 420.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =10a(8) =12a(9) =14a(10) =15a(11) =20a(12) =21a(13) =28a(14) =30a(15) =35a(16) =42a(17) =60a(18) =70a(19) =84a(20) =105a(21) =140a(22) =210a(23) =420