A183406 - OEIS

A183406

Number of nX5 binary arrays with each sum of a(1..i,1..j) no greater than i*j/2

10, 260, 5354, 154079, 3770481, 112353512, 2965955665, 89945894383, 2477411142245, 75930571035939, 2148890776573534, 66330562852888061, 1912878564502004446, 59346407547808417447, 1735296847301030887989

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OFFSET

1,1

COMMENTS

Column 5 of A183407

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..16

EXAMPLE

Some solutions for 4X5

..0..0..0..1..0....0..1..0..1..0....0..0..1..0..0....0..0..1..1..0

..0..0..0..0..1....0..1..1..0..0....0..1..0..0..0....0..1..0..1..1

..0..0..0..0..0....0..0..0..0..0....1..0..0..1..1....1..0..0..0..1

..0..0..1..1..1....0..1..1..1..0....0..0..1..1..1....1..0..0..0..1

CROSSREFS

Sequence in context: A120268 A001824 A024294 * A084999 A268730 A217911

Adjacent sequences: A183403 A183404 A183405 * A183407 A183408 A183409

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 2011

STATUS

approved