Number of words of length n over an infinite alphabet such that the letters cover an initial interval and the letter 1 occurs at least as many times as any other letter.

A386374

Number of words of length n over an infinite alphabet such that the letters cover an initial interval and the letter 1 occurs at least as many times as any other letter.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =10a(4) =47a(5) =276a(6) =2022a(7) =17606a(8) =179391a(9) =2093860a(10) =27581888a(11) =404680398a(12) =6541528886a(13) =115437202986

External references