A214348 Number of nXnXn triangular 0..4 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors

5, 65, 1951, 127813, 17790765, 5193620491, 3160001994563, 3995872591050989, 10489950826300197841, 57160724000127089232531

Offset

1,1

Comments

Column 4 of A214352

Links

Table of n, a(n) for n=1..10.

Example

Some solutions for n=3
....4......2......1......1......3......1......1......1......2......1......1
...0.4....1.2....1.4....4.1....3.0....2.1....2.0....0.4....2.2....1.3....0.2
..1.0.4..1.3.2..1.4.4..4.4.0..4.3.0..2.2.1..4.0.1..4.0.4..4.0.2..1.1.4..0.1.2

Crossrefs

Sequence in context: A046881 A336674 A300489 * A195196 A012635 A196975

Adjacent sequences: A214345 A214346 A214347 * A214349 A214350 A214351

Keyword

nonn

Author

R. H. Hardin Jul 13 2012

Status

approved