Sum of A358764 and its Dirichlet inverse.

Terms

a(0) =2a(1) =0a(2) =0a(3) =4a(4) =0a(5) =12a(6) =0a(7) =16a(8) =9a(9) =36a(10) =0a(11) =16a(12) =0a(13) =20a(14) =54a(15) =20a(16) =0a(17) =30a(18) =0a(19) =120a(20) =30a(21) =180a(22) =0a(23) =20a(24) =81a(25) =100a(26) =63a(27) =200a(28) =0a(29) =228