Derived from central terms (A127090) of triangle A127082; a(n) = A127090(n)/(n+1).

A127091

Derived from central terms (A127090) of triangle A127082; a(n) = A127090(n)/(n+1).

Terms

    a(0) =1a(1) =1a(2) =5a(3) =48a(4) =727a(5) =15455a(6) =428338a(7) =14732200a(8) =607324669a(9) =29250572599

External references