Number of necklace compositions of n with no part circularly followed by a divisor.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =2a(7) =1a(8) =3a(9) =5a(10) =5a(11) =7a(12) =10a(13) =18a(14) =20a(15) =29a(16) =40a(17) =58a(18) =78a(19) =111a(20) =156a(21) =218a(22) =304a(23) =429a(24) =604a(25) =859a(26) =1209a(27) =1726a(28) =2423a(29) =3462