Number of ballot sequences of length n having exactly five descents.

A241798

Number of ballot sequences of length n having exactly five descents.

Terms

    a(0) =4a(1) =112a(2) =1615a(3) =15403a(4) =112106a(5) =672015a(6) =3477691a(7) =16037089a(8) =67235292a(9) =260887532a(10) =946435074a(11) =3246205986a(12) =10587385911a(13) =33085654876a(14) =99411959668a(15) =288773319190a(16) =812777159786

External references