A214536 Number of nXnXn triangular 0..4 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

5, 13, 79, 1181, 35567, 2280331, 292689331, 75286406603, 37837349841125

Offset

1,1

Comments

Column 4 of A214540

Links

Table of n, a(n) for n=1..9.

Example

Some solutions for n=4
.....2........1........2........2........2........2........1........3
....3.1......1.1......3.1......2.2......0.4......2.2......1.1......4.2
...4.1.1....2.1.0....4.2.0....2.1.3....0.4.2....2.4.0....0.3.0....4.3.2
..1.4.0.3..2.2.0.0..2.4.0.2..3.1.0.4..2.0.4.2..1.4.3.0..0.3.0.1..4.3.3.2

Crossrefs

Sequence in context: A027457 A113876 A333082 * A363015 A324418 A359316

Adjacent sequences: A214533 A214534 A214535 * A214537 A214538 A214539

Keyword

nonn

Author

R. H. Hardin Jul 20 2012

Status

approved