Central terms of triangle A379200; a(n) = A379200(2*n-1,n-1) for n >= 1.

A379206

Central terms of triangle A379200; a(n) = A379200(2*n-1,n-1) for n >= 1.

Terms

    a(0) =1a(1) =4a(2) =52a(3) =1004a(4) =24540a(5) =693528a(6) =21365548a(7) =694033712a(8) =23369007288a(9) =808414759404

External references