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A253374
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Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw
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0
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751689, 27587386, 912012350, 8129400162, 90160819133, 395423995297, 2328730657618, 7268309821982, 30358932724029, 80127971130743, 277035286072420, 673287348628358, 2096912690843655, 4920343202272054
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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=1
..0..0..0..1..0..0..1..2....0..0..0..1..0..1..1..0....0..0..0..1..1..2..1..1
..0..0..1..1..1..2..2..0....1..0..1..0..1..0..1..2....1..1..2..1..1..1..1..2
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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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