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A188412
Number of (5*n)X5 binary arrays with rows in nonincreasing order, n ones in every column and no more than 3 ones in any row
1
46, 1308, 21965, 252493, 2181522, 15083334, 87171345, 434626896, 1914365683, 7586544223, 27443717856, 91677539685, 285511159634, 835479072942, 2312389036003, 6087264779565, 15314086591293, 36970334246131
OFFSET
1,1
COMMENTS
Column 5 of A188416
LINKS
EXAMPLE
Some solutions for 10X5
..1..1..0..0..0....1..0..0..0..0....1..1..0..0..0....1..0..1..0..0
..1..0..0..0..0....1..0..0..0..0....1..0..1..1..0....1..0..0..1..1
..0..1..0..1..1....0..1..1..1..0....0..1..0..0..0....0..1..0..0..0
..0..0..1..0..0....0..1..1..1..0....0..0..1..0..1....0..1..0..0..0
..0..0..1..0..0....0..0..0..0..1....0..0..0..1..0....0..0..1..0..0
..0..0..0..1..1....0..0..0..0..1....0..0..0..0..1....0..0..0..1..0
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..1
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0
CROSSREFS
Sequence in context: A261940 A060561 A281321 * A066403 A286788 A028574
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 30 2011
STATUS
approved