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Central terms of triangle A124328; a(n) = A124328(2n+1,n+1) for n>=0.
4

%I #3 Mar 30 2012 18:37:01

%S 1,2,9,44,235,1296,7329,42104,244719,1434840,8470517,50280372,

%T 299806572,1794382548,10773855210,64865425760,391457133672,

%U 2367314649522,14342441005900,87035702613500,528938145043707,3218713327609648

%N Central terms of triangle A124328; a(n) = A124328(2n+1,n+1) for n>=0.

%F a(n) = (n+1)*A124890(n).

%Y Cf. A124328, A124889, A124890, A124891.

%K nonn

%O 0,2

%A _Paul D. Hanna_, Nov 12 2006