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%I #6 Mar 07 2020 01:35:37
%S 3,24,2304,15925248,26418075402240,26294650153960734720000,
%T 32976469951036202010909081600000000,
%U 97269850356607540052618180220048900096000000000000,1156838823908660229380221584221016428369393918222008320000000000000000
%N Row 3 of square array defined in A047675.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_