Number of sequences of length n that cover an initial interval of positive integers and are both a reversed Lyndon word and a co-Lyndon word.

A334270

Number of sequences of length n that cover an initial interval of positive integers and are both a reversed Lyndon word and a co-Lyndon word.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =10a(5) =42a(6) =224a(7) =1505a(8) =12380a(9) =120439a(10) =1352899a(11) =17206942

External references