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 A214008 Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i*4 0
 5, 375, 564041, 17609835599, 11798463876314995 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A214011 LINKS Table of n, a(n) for n=1..5. EXAMPLE Some solutions for n=3 ..2..2..0....0..0..0....0..0..0....0..0..3....3..0..1....0..0..0....2..0..0 ..0..6..2....0..2..0....4..1..0....0..0..4....0..5..0....0..8..0....0..4..3 ..0..0..7....0..2..9....0..0..4....0..0..5....0..2..0....0..0..2....0..2..6 CROSSREFS Sequence in context: A354831 A072172 A278364 * A208094 A273397 A261433 Adjacent sequences: A214005 A214006 A214007 * A214009 A214010 A214011 KEYWORD nonn AUTHOR R. H. Hardin Jun 30 2012 STATUS approved

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Last modified June 13 17:32 EDT 2024. Contains 373391 sequences. (Running on oeis4.)