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A234127
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Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1
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1
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12457, 484731, 19007583, 753253097, 29939517797, 1191882104721, 47493714739641, 1893857438251263, 75563062469539403, 3016375900398947031, 120461028024895476887, 4812488258562982818841, 192324808079833297779041
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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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FORMULA
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Empirical recurrence of order 78 (see link above)
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EXAMPLE
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Some solutions for n=1
..3..3..3..4..4....4..4..3..3..4....3..2..2..2..2....6..5..5..4..4
..4..3..4..3..4....3..3..3..3..4....2..3..3..3..3....6..5..5..5..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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