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A258949
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Number of (n+3) X (n+3) 0..1 arrays with no 4 X 4 subblock diagonal sum not equal the antidiagonal sum.
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0
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17920, 213920, 1188294, 2864828, 2618602, 1910774, 918188, 973994, 798740, 1339314, 1508072, 2300668, 4527544
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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..1..1....1..0..0..0....1..0..0..0....0..0..0..0....1..0..1..0
..0..1..0..1....1..0..1..0....1..1..1..1....0..0..1..0....1..0..0..0
..0..1..1..0....0..0..1..0....0..1..0..1....0..0..1..0....1..1..0..1
..1..0..1..1....1..1..0..0....0..1..1..0....1..1..1..1....0..0..1..0
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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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