Number of compositions of n whose Lyndon and co-Lyndon factorizations both have the same length.
A329394
Number of compositions of n whose Lyndon and co-Lyndon factorizations both have the same length.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =4a(5) =10a(6) =13a(7) =28a(8) =46a(9) =99a(10) =175a(11) =359a(12) =672a(13) =1358a(14) =2627a(15) =5238a(16) =10262a(17) =20438a(18) =40320a(19) =80137
External references
- oeis: A329394