Sum over all Dyck paths of semilength n of products over all peaks p of y_p^2, where y_p is the y-coordinate of peak p.

A258179

Sum over all Dyck paths of semilength n of products over all peaks p of y_p^2, where y_p is the y-coordinate of peak p.

Terms

    a(0) =1a(1) =1a(2) =5a(3) =34a(4) =312a(5) =3649a(6) =52161a(7) =889843a(8) =17796555a(9) =411120395a(10) =10838039407a(11) =322752018060

External references