%I #7 Mar 30 2012 18:56:26
%S 0,1,7,39,196,930,4257,19019,83512,361998,1553630,6615686,27992472,
%T 117823940,493768485,2061580275,8580127920,35611376790,147447066690,
%U 609200868210,2512267906200,10342848445020,42516521451690,174535009040574
%N a(n)=f(n,n) where f is given in A034261.
%K nonn
%O 1,3
%A _Clark Kimberling_
%E Corrected and extended Apr 21 2000 - _N. J. A. Sloane_.