Dirichlet convolution of A011782 [2^(n-1)] with A055615 (Dirichlet inverse of n).

Terms

a(0) =1a(1) =0a(2) =1a(3) =4a(4) =11a(5) =24a(6) =57a(7) =112a(8) =244a(9) =480a(10) =1013a(11) =1972a(12) =4083a(13) =8064a(14) =16331a(15) =32512a(16) =65519a(17) =130488a(18) =262125a(19) =523244a(20) =1048377a(21) =2095104a(22) =4194281a(23) =8384176a(24) =16777136a(25) =33546240a(26) =67108096a(27) =134201316a(28) =268435427a(29) =536836584