Central terms of triangle A236961: a(n) = A236961(2*n,n) for n >= 0.

A359716

Central terms of triangle A236961: a(n) = A236961(2*n,n) for n >= 0.

Terms

    a(0) =1a(1) =2a(2) =21a(3) =412a(4) =12045a(5) =471666a(6) =23248400a(7) =1384919040a(8) =96891179337

External references