Dirichlet inverse of A124859.

Terms

a(0) =1a(1) =-2a(2) =-2a(3) =-2a(4) =-2a(5) =4a(6) =-2a(7) =-14a(8) =-2a(9) =4a(10) =-2a(11) =4a(12) =-2a(13) =4a(14) =4a(15) =-110a(16) =-2a(17) =4a(18) =-2a(19) =4a(20) =4a(21) =4a(22) =-2a(23) =28a(24) =-2a(25) =4a(26) =-14a(27) =4a(28) =-2a(29) =-8