a(n) = Product_{d|n} prime(d).

Terms

a(0) =2a(1) =6a(2) =10a(3) =42a(4) =22a(5) =390a(6) =34a(7) =798a(8) =230a(9) =1914a(10) =62a(11) =101010a(12) =82a(13) =4386a(14) =5170a(15) =42294a(16) =118a(17) =547170a(18) =134a(19) =951258a(20) =12410a(21) =14694a(22) =166a(23) =170807910a(24) =2134a(25) =24846a(26) =23690a(27) =3285114a(28) =218a(29) =660741510