Inverse Möbius transform of A003958.

Terms

a(0) =1a(1) =2a(2) =3a(3) =3a(4) =5a(5) =6a(6) =7a(7) =4a(8) =7a(9) =10a(10) =11a(11) =9a(12) =13a(13) =14a(14) =15a(15) =5a(16) =17a(17) =14a(18) =19a(19) =15a(20) =21a(21) =22a(22) =23a(23) =12a(24) =21a(25) =26a(26) =15a(27) =21a(28) =29a(29) =30