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A236279
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Number of (n+1)X(2+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise
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1
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432, 5805, 87450, 901317, 9293996, 73777097, 583531732, 3814287681, 24858329516, 139836395921, 784874890619, 3914363002363, 19489759979307, 88019540187885, 397033923060013, 1649563318118096, 6847455887807999, 26493023678026609
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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=3
..0..1..1....0..2..0....0..2..1....1..2..2....1..1..2....1..0..1....1..1..1
..1..1..1....0..2..1....0..0..1....1..0..2....0..1..1....0..2..0....1..0..2
..2..1..2....2..2..1....1..2..2....2..2..0....2..0..1....0..1..1....2..0..1
..0..2..0....2..2..2....1..0..1....2..1..1....0..1..2....2..2..2....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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