Fully additive with a(p) = p# for prime p, where x# is the primorial A034386(x).

Terms

a(0) =0a(1) =2a(2) =6a(3) =4a(4) =30a(5) =8a(6) =210a(7) =6a(8) =12a(9) =32a(10) =2310a(11) =10a(12) =30030a(13) =212a(14) =36a(15) =8a(16) =510510a(17) =14a(18) =9699690a(19) =34a(20) =216a(21) =2312a(22) =223092870a(23) =12a(24) =60a(25) =30032a(26) =18a(27) =214a(28) =6469693230a(29) =38