Sums of rows of the triangle in A108396.

A108397

Sums of rows of the triangle in A108396.

Terms

    a(0) =0a(1) =2a(2) =10a(3) =66a(4) =692a(5) =9780a(6) =167982a(7) =3362828a(8) =76695880a(9) =1961316270a(10) =55555555610

External references