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A235174
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Number of (n+1) X (6+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
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0
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1603344, 7533616, 35209872, 166600788, 790073988, 3773616876, 18074063004, 87109748012, 420922099064, 2045869493268, 9967014218496, 48826742512152
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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:
0 6 3 1 0 3 1 6 4 2 7 5 2 5 6 0 2 0 7 4 7
2 4 5 7 2 1 3 4 6 0 1 3 4 3 4 2 0 2 5 6 5
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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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