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A233937
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Number of (n+1)X(4+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 16
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1
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88572, 661392, 4772576, 45364028, 410504080, 5477532268, 60733857256, 1079461642560, 13342556725120, 271325357838568, 3484793466303292, 74311875931743564, 966128816028679112, 20929726685821229140
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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
..3..7..2..0..3....7..6..2..5..1....3..5..7..6..5....2..6..5..7..5
..2..2..3..5..2....2..5..7..4..6....0..4..2..7..2....3..1..6..2..6
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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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