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A238253
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Number of (n+1)X(6+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise
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1
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1482, 29995, 1473792, 65450601, 3320993180, 128727296869, 5017308028639, 154350327958339, 4704917436206270, 118251124084419007, 2946366157111042290, 62617673607295964138, 1321308517824396221455, 24384005345308756975149
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=2
..0..1..0..1..0..1..1....0..0..0..1..1..1..1....0..1..0..1..0..1..1
..0..0..0..1..0..1..1....0..0..0..0..0..0..0....1..0..1..0..1..1..1
..0..1..1..0..1..1..1....1..0..1..0..1..1..1....0..1..0..1..1..0..1
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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