Number of compositions of n with distinct circular differences.

Terms

a(0) =1a(1) =1a(2) =3a(3) =6a(4) =11a(5) =8a(6) =26a(7) =50a(8) =79a(9) =121a(10) =195a(11) =265a(12) =478a(13) =742a(14) =1269a(15) =1914a(16) =2929a(17) =4462a(18) =6825a(19) =10309a(20) =16324a(21) =24633a(22) =37213a(23) =56828a(24) =84482