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A202557
Number of nX5 0,1 arrays with the row and column sums nondecreasing.
1
6, 73, 824, 9325, 103806, 1126437, 12176148, 130217215, 1384437590, 14638759530, 153859811582, 1612968122563, 16850540584514, 175613681682972, 1826081927556004, 18940152569016323, 196169872012941802
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OFFSET
1,1
COMMENTS
Column 5 of
A202560
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..24
EXAMPLE
Some solutions for n=4
..0..0..0..1..1....0..0..0..0..1....0..0..0..1..1....0..0..0..1..1
..1..1..0..0..0....0..1..1..0..0....1..0..0..1..1....0..1..0..1..1
..0..1..1..0..0....1..0..0..0..1....1..1..1..0..0....1..0..1..1..0
..1..0..1..1..1....0..0..0..1..1....0..1..1..1..1....1..1..1..0..1
CROSSREFS
Sequence in context:
A041063
A105324
A179568
*
A089926
A041060
A381428
Adjacent sequences:
A202554
A202555
A202556
*
A202558
A202559
A202560
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Dec 21 2011
STATUS
approved
