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A278633
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Number of nX7 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
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1
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1107, 932205, 541463431, 309971214338, 175644502146694, 94782697883923436, 47369705674953303984, 21685396319356730003339, 9098829152955190125398905, 3522319073864419078316881080, 1269570351401707348639148214535
(list;
graph;
refs;
listen;
history;
text;
internal format)
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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..2..0..0..1..0. .1..1..2..0..1..0..0. .1..2..2..1..2..2..2
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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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