A203061 Number of nX3 0..6 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor

49, 16625, 3421817, 608893191, 111898706731, 20929382959987, 3898031053158067, 724530008223344653, 134743665957095646765, 25064589517883536625961, 4662096688032488638076973, 867142733431123407591563935

Offset

1,1

Comments

Column 3 of A203066

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=5
..0..3..1....2..0..5....0..0..4....4..2..4....3..0..2....0..3..0....2..5..1
..1..5..1....6..5..6....2..4..4....4..6..4....3..0..2....4..4..3....0..5..6
..4..5..2....6..4..6....0..4..2....6..6..5....3..4..6....6..6..2....2..4..6
..2..6..5....1..6..1....5..1..1....1..5..2....2..4..6....4..3..4....6..1..4
..6..6..1....3..6..3....5..2..0....6..6..6....4..4..5....0..3..4....6..6..1

Crossrefs

Sequence in context: A222459 A145251 A202991 * A013741 A178190 A319941

Adjacent sequences: A203058 A203059 A203060 * A203062 A203063 A203064

Keyword

nonn

Author

R. H. Hardin Dec 28 2011

Status

approved