Sum of primorial inflation (A108951) and its Dirichlet inverse.

Terms

a(0) =2a(1) =0a(2) =0a(3) =4a(4) =0a(5) =24a(6) =0a(7) =8a(8) =36a(9) =120a(10) =0a(11) =24a(12) =0a(13) =840a(14) =360a(15) =16a(16) =0a(17) =72a(18) =0a(19) =120a(20) =2520a(21) =9240a(22) =0a(23) =48a(24) =900a(25) =120120a(26) =216a(27) =840a(28) =0a(29) =0