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A234216
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Number of (n+1)X(7+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11
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1
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385536, 5219076, 61124816, 972664988, 12541330624, 232097384988, 3176900588064, 68467230785600, 972253980324272, 24017782620233436, 347692490449459912, 9542089220246179200, 139313868342610403984
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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..0..1..2..1..0..1....1..3..4..2..1..2..4..4....1..0..1..2..1..0..2..0
..2..1..2..0..0..2..2..2....1..2..2..3..1..3..2..3....2..2..2..0..2..2..1..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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