Number of ballot sequences of length n having largest descent 9.

A244205

Number of ballot sequences of length n having largest descent 9.

Terms

    a(0) =1a(1) =12a(2) =133a(3) =1125a(4) =9238a(5) =68619a(6) =499415a(7) =3490873a(8) =24131903a(9) =163571510a(10) =1103866052a(11) =7385297559a(12) =49389978105a(13) =329450566234

External references