Central terms of triangles A102472 and A102473.

A247365

Central terms of triangles A102472 and A102473.

Terms

    a(0) =1a(1) =2a(2) =13a(3) =130a(4) =1807a(5) =32280a(6) =705421a(7) =18237164a(8) =544505521a(9) =18438430990a(10) =698246022001

External references