Triangle read by rows: T(n,k) is the number of inversions in k-compositions of n for n >= 3, 2 <= k <= n-1.

A189073

Triangle read by rows: T(n,k) is the number of inversions in k-compositions of n for n >= 3, 2 <= k <= n-1.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =2a(4) =6a(5) =6a(6) =2a(7) =12a(8) =18a(9) =10a(10) =3a(11) =18a(12) =42a(13) =40a(14) =15a(15) =3a(16) =27a(17) =78a(18) =110a(19) =75a(20) =21a(21) =4a(22) =36a(23) =132a(24) =240a(25) =240a(26) =126a(27) =28a(28) =4a(29) =48

External references