%I #6 Mar 15 2023 15:32:47
%S 1,21,207,1298,6052,22824,73383,208269,534687,1264026,2788834,5802288,
%T 11477240,21726484,39571482,69652946,118924069,197575191,320248137,
%U 507608530,788356140,1201765708,1800865001,2656371783,3861528515
%N Number of 4 X 4 X 4 triangular nonnegative integer arrays with all sums of an element and its neighbors <= n.
%H R. H. Hardin, <a href="/A166190/b166190.txt">Table of n, a(n) for n=0..31</a>
%K nonn
%O 0,2
%A _R. H. Hardin_, Oct 09 2009