Number of integer compositions of n whose leaders of weakly increasing runs are not strictly decreasing.

A375140

Number of integer compositions of n whose leaders of weakly increasing runs are not strictly decreasing.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =1a(4) =3a(5) =10a(6) =26a(7) =65a(8) =151a(9) =343a(10) =750a(11) =1614a(12) =3410a(13) =7123a(14) =14724a(15) =30220a(16) =61639a(17) =125166a(18) =253233a(19) =510936a(20) =1028659a(21) =2067620a(22) =4150699a(23) =8324552a(24) =16683501a(25) =33417933a(26) =66910805a(27) =133931495a(28) =268023257a(29) =536279457

External references