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A253739
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Number of (n+2)X(7+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically
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1
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222820, 148328, 243796, 922004, 3230352, 11094376, 40265740, 158864740, 622829668, 2349461712, 8925387720, 34829656816, 135741728872, 519828704980, 1994445578168, 7734803041588, 30010818872708, 115433535492588
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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..1..1..0..0..1..0..0..1....0..1..1..0..1..0..0..1..1
..0..0..0..1..0..1..1..0..1....0..1..0..1..0..1..0..1..0
..0..1..0..1..1..1..1..1..1....1..0..0..1..1..0..1..0..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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