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A233888
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Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal
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1
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4292, 47732, 496200, 5859504, 64285728, 759799284, 8442821772, 99513692668, 1113177722808, 13092724850804, 147182159518872, 1728448343828392, 19509469596898344, 228854323507171932, 2592132414691402368
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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=2
..5..1..2..1..2....0..3..0..3..0....0..3..1..4..1....6..2..6..2..3
..6..3..6..3..6....4..5..1..5..1....4..2..5..3..5....3..1..4..5..1
..2..4..2..1..5....0..3..0..2..3....3..6..4..0..1....2..5..6..2..3
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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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