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%I #4 Apr 06 2016 09:58:34
%S 0,0,15,11160,101140812,6623245236960,2406648755770799076,
%T 4780381645330995753547452,52746524075859182651510400836592,
%U 3272904219761041284771795930004451044056
%N Number of nXnXn triangular 0..5 arrays with new values introduced in sequential zero-upwards order and exactly one inverted 2x2x2 triangle having values all equal.
%C Column 5 of A271407.
%H R. H. Hardin, <a href="/A271404/b271404.txt">Table of n, a(n) for n = 1..11</a>
%e Some solutions for n=4
%e .....0........0........0........0........0........0........0........0
%e ....0.0......1.2......1.1......0.0......1.1......0.0......1.1......1.2
%e ...1.0.2....2.2.1....2.1.2....1.0.2....1.1.1....1.1.2....1.1.0....2.2.3
%e ..0.3.1.1..3.2.0.1..1.0.2.0..1.1.0.3..2.3.3.1..3.1.0.3..0.0.2.2..4.2.1.3
%Y Cf. A271407.
%K nonn
%O 1,3
%A _R. H. Hardin_, Apr 06 2016
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