A214346 Number of nXnXn triangular 0..2 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors.

3, 17, 169, 2853, 80573, 3778867, 293207907, 37563586269, 7937469117891, 2764964877941141, 1587376056676684453, 1501785457780559131093, 2341332949071519298798233

Offset: 1

Author

R. H. Hardin Jul 13 2012

Keywords

• nonn

Comments

Column 2 of A214352

Examples

			Some solutions for n=3
....2......2......0......1......1......1......1......0......0......2......1
...0.2....2.1....0.2....1.1....1.1....2.1....2.0....2.0....0.1....0.2....1.2
..0.2.1..2.0.1..0.2.2..1.0.1..0.2.1..2.2.1..1.2.0..2.2.0..0.0.2..2.0.2..0.1.2