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A222335
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Number of nX2 0..6 arrays with no entry increasing mod 7 by 6 rightwards or downwards, starting with upper left zero
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2
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6, 186, 5766, 178746, 5541126, 171774906, 5325022086, 165075684666, 5117346224646, 158637732964026, 4917769721884806, 152450861378428986, 4725976702731298566, 146505277784670255546, 4541663611324777921926
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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: a(n) = 31*a(n-1)
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EXAMPLE
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Some solutions for n=3
..0..4....0..4....0..1....0..3....0..4....0..0....0..4....0..1....0..3....0..0
..1..6....3..1....5..3....5..1....5..6....3..3....1..5....3..5....0..3....3..3
..3..0....5..5....5..1....1..2....5..1....0..0....4..6....5..1....1..6....5..0
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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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