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

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =2a(6) =0a(7) =4a(8) =2a(9) =4a(10) =12a(11) =8a(12) =22a(13) =14a(14) =36a(15) =44a(16) =62a(17) =114a(18) =130a(19) =206a(20) =264a(21) =414a(22) =602a(23) =822a(24) =1250a(25) =1672a(26) =2520a(27) =3518a(28) =5146a(29) =7408