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A234737
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Number of (n+1) X (7+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 8 (constant-stress 1 X 1 tilings).
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0
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426120, 760608, 1283880, 2723040, 5395128, 13083552, 29705640, 79520352, 200901240, 578901408, 1586287080, 4838786400, 14115215928
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OFFSET
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1,1
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LINKS
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EXAMPLE
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Some solutions for n=1:
2 6 1 7 0 5 3 5 0 5 1 5 2 7 0 5 6 1 7 1 7 0 6 3
6 2 5 3 4 1 7 1 4 1 5 1 6 3 4 1 2 5 3 5 3 4 2 7
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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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