Moebius transform of A000048 (starting at term 0).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =2a(6) =4a(7) =8a(8) =15a(9) =26a(10) =50a(11) =90a(12) =169a(13) =310a(14) =583a(15) =1082a(16) =2047a(17) =3837a(18) =7279a(19) =13769a(20) =26209a(21) =49878a(22) =95324a(23) =182260a(24) =349518a(25) =670918a(26) =1290539a(27) =2485189a(28) =4793489a(29) =9255782