A214535 Number of nXnXn triangular 0..3 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and every horizontal row having the same average value.

4, 8, 38, 344, 5360, 141470, 6042900, 420213820, 47817344852, 8897304579262

Offset: 1

Author

R. H. Hardin Jul 20 2012

Keywords

• nonn

Comments

Column 3 of A214540

Examples

			Some solutions for n=4
.....2........1........1........2........2........1........1........2
....2.2......1.1......1.1......1.3......2.2......1.1......0.2......2.2
...1.3.2....1.2.0....1.1.1....2.1.3....1.3.2....2.1.0....1.0.2....1.2.3
..3.0.3.2..1.2.1.0..2.1.1.0..3.0.2.3..0.3.3.2..0.3.0.1..2.0.0.2..2.0.3.3