Number of Lyndon compositions (aperiodic necklaces of positive integers) with sum n and successive parts (including the last with the first part) being indivisible.
A318746
Number of Lyndon compositions (aperiodic necklaces of positive integers) with sum n and successive parts (including the last with the first part) being indivisible.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =3a(7) =2a(8) =4a(9) =5a(10) =6a(11) =8a(12) =11a(13) =17a(14) =20a(15) =29a(16) =41a(17) =56a(18) =79a(19) =107a(20) =155a(21) =214a(22) =305a(23) =422a(24) =604a(25) =850a(26) =1207a(27) =1709a(28) =2424a(29) =3439
External references
- oeis: A318746