A214350 Number of nXnXn triangular 0..6 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors

7, 161, 10507, 1807653, 790197579, 861351043995, 2318511875463567, 15333331066778365463

Offset

1,1

Comments

Column 6 of A214352

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for n=3
....2......3......3......3......4......4......3......3......2......2......6
...6.1....1.4....4.1....3.4....4.1....2.4....1.5....3.1....2.0....2.5....5.6
..2.6.1..5.0.4..6.1.0..3.6.4..4.3.0..3.2.5..1.6.0..4.1.2..5.0.0..2.5.0..3.6.0

Crossrefs

Sequence in context: A316947 A083153 A320337 * A208263 A160454 A217241

Adjacent sequences: A214347 A214348 A214349 * A214351 A214352 A214353

Keyword

nonn

Author

R. H. Hardin Jul 13 2012

Status

approved