Inverse Möbius transform of A003965.

Terms

a(0) =1a(1) =3a(2) =4a(3) =7a(4) =6a(5) =12a(6) =9a(7) =15a(8) =13a(9) =18a(10) =14a(11) =28a(12) =22a(13) =27a(14) =24a(15) =31a(16) =35a(17) =39a(18) =56a(19) =42a(20) =36a(21) =42a(22) =90a(23) =60a(24) =31a(25) =66a(26) =40a(27) =63a(28) =145a(29) =72