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%I #3 Mar 31 2012 12:35:35
%S 1,6460,14252749,10459516337,2908246084285,398461742491565
%N Number of 15X15X15 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n
%K nonn
%O 0,2
%A _R. H. Hardin_ Oct 09 2009
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