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A233890
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Number of (n+1)X(6+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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48300, 1183328, 27131156, 759799284, 19042134996, 537828679688, 13755592501748, 387390404847976, 10003460641597548, 280806316673884556, 7299032599538032096, 204351152523102679952, 5339436117855061179288
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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
..1..2..5..3..5..2..5....2..1..2..1..5..1..5....0..2..6..5..2..5..2
..4..6..4..0..4..6..4....0..4..0..4..6..3..6....1..5..4..1..3..1..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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