A146533 - OEIS

%I #17 Sep 08 2013 13:31:28

%S 1,7,21,70,245,882,3234,12012,45045,170170,646646,2469012,9464546,

%T 36402100,140408100,542911320,2103781365,8167621770,31762973550,

%U 123708423300,482462850870,1883902560540,7364346373020

%N Catalan transform of A135092.

%F a(n) = Sum_{k, 0<=k<=n}A039599(n,k)*A010687(k) = Sum_{k, 0<=k<=n} A106566(n,k)*A135092(k).

%F a(n) = (7*C(2n,n)-5*0^n)/2.

%Y Cf. A088218, A000984, A029651, A100320, A029609, A144706.

%K nonn

%O 0,2

%A _Philippe Deléham_, Oct 31 2008