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A214380 Number of nXnXn triangular 0..4 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and no element equal to its horizontal neighbors.

%I A214380 #5 Jul 22 2025 23:15:49
%S A214380 5,60,1506,74260,6981540,1232720402,405643523920,247808504584204,
%T A214380 280544568122925740,588171370513791301320
%N A214380 Number of nXnXn triangular 0..4 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and no element equal to its horizontal neighbors.
%C A214380 Column 4 of A214384
%e A214380 Some solutions for n=3
%e A214380 ....2......1......3......1......4......0......2......1......1......2......1
%e A214380 ...2.0....1.0....3.4....0.2....3.4....0.3....3.2....2.1....0.2....1.4....0.2
%e A214380 ..4.1.0..2.0.3..2.4.3..0.3.0..1.4.0..0.2.3..4.1.3..2.1.3..0.2.4..3.0.4..0.2.3
%K A214380 nonn
%O A214380 1,1
%A A214380 _R. H. Hardin_ Jul 14 2012