a(n) = usigma(A276086(n)), where usigma (A034448) is multiplicative with a(p^e) = (p^e)+1, and A276086 gives the prime product form of primorial base expansion of n.
A348996
a(n) = usigma(A276086(n)), where usigma (A034448) is multiplicative with a(p^e) = (p^e)+1, and A276086 gives the prime product form of primorial base expansion of n.
Terms
- a(0) =1a(1) =3a(2) =4a(3) =12a(4) =10a(5) =30a(6) =6a(7) =18a(8) =24a(9) =72a(10) =60a(11) =180a(12) =26a(13) =78a(14) =104a(15) =312a(16) =260a(17) =780a(18) =126a(19) =378a(20) =504a(21) =1512a(22) =1260a(23) =3780a(24) =626a(25) =1878a(26) =2504a(27) =7512a(28) =6260a(29) =18780
External references
- oeis: A348996