A201096 Number of nX3 0..7 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

56, 140, 252, 10423, 6972, 85005, 478198, 27782, 3937944, 5383954, 3924198, 71618507, 17686966, 130532978, 548361638, 21099296, 2051973940, 1828355516, 936392588, 14500933504, 2960256206, 17247353848, 55830973422, 1635699693

Offset

1,1

Comments

Column 3 of A201101

Links

R. H. Hardin, Table of n, a(n) for n = 1..43

Example

Some solutions for n=6
..0..1..3....0..0..2....0..0..3....0..0..3....0..1..5....0..2..4....0..1..2
..0..2..5....1..3..5....1..2..4....1..1..5....0..1..5....0..2..6....0..3..3
..1..2..5....1..4..6....1..2..5....2..3..5....2..2..6....0..3..6....1..4..5
..3..4..5....2..5..6....2..3..5....2..3..6....3..4..6....1..3..6....2..4..5
..3..6..7....3..5..6....4..5..6....4..6..7....3..4..6....1..5..7....2..6..7
..4..6..7....4..7..7....6..7..7....4..7..7....5..7..7....4..5..7....6..6..7

Crossrefs

Sequence in context: A044307 A044688 A241287 * A358540 A358860 A226128

Adjacent sequences: A201093 A201094 A201095 * A201097 A201098 A201099

Keyword

nonn

Author

R. H. Hardin Nov 26 2011

Status

approved