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A214009
Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i*5
0
6, 756, 2663506, 269462676001, 807203255071567008
OFFSET
1,1
COMMENTS
Column 5 of A214011
EXAMPLE
Some solutions for n=3
..2..0..0....1..0..0....0..0..5....0..0..0....0..0..0....4..0..0....0..0..3
..0..9..1....0..8..0....0..0..0....0..1..9....0..4..0....0..0..8....0..0..0
..0..0..9....0..1..1....0..4..9....1..7..2....0..6..0....0..1..1....0..6..4
CROSSREFS
Sequence in context: A251810 A283787 A130688 * A332176 A088217 A242850
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 30 2012
STATUS
approved