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A235419
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Number of (n+1)X(3+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and nonincreasing columnwise
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1
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2304, 60879, 1607343, 33411901, 692896087, 11682620720, 200551110843, 2871917717259, 42041935330149, 525298071602797, 6697226820277449, 74334917602209111, 839152459304377096, 8384862572475130200
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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
..1..2..2..1....2..0..2..1....1..2..0..0....0..2..0..0....1..0..1..0
..2..0..0..1....2..2..0..1....1..1..1..2....2..1..0..2....1..0..0..0
..2..2..1..0....1..2..2..2....2..2..1..1....1..2..2..1....2..2..0..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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