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%I #4 Apr 16 2024 22:11:27
%S 0,4,115,2263,337040438,50539060640,7074108084209,943101044111145,
%T 121246131347141448,15154916165017175118,1852191953202054212155,
%U 222256232357242458252559,26266027276128286229296330
%N a(n) = A080481(n)/3.
%Y Cf. A080481, A080483, A080484.
%K base,easy,nonn
%O 1,2
%A _Amarnath Murthy_, Mar 11 2003
%E Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003