%I #8 Nov 29 2017 03:35:00
%S 1,9,403840,3134895604437030,2672411782638277673724960927991328
%N Half the number of ways of placing up to n^3 identical weights in an n X n X n grid so that it balances at its center, at most one weight to a grid position.
%K nonn,more
%O 1,2
%A _R. H. Hardin_, Nov 25 2007