Self-convolution of A005568, where A005568(n) is the product of two successive Catalan numbers C(n)*C(n+1).

A168452

Self-convolution of A005568, where A005568(n) is the product of two successive Catalan numbers C(n)*C(n+1).

Terms

    a(0) =1a(1) =4a(2) =24a(3) =180a(4) =1556a(5) =14840a(6) =152092a(7) =1646652a(8) =18613664a(9) =217852008a(10) =2623657384a(11) =32361812912a(12) =407342311632

External references