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A223781
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Number of nX6 0..1 arrays with row sums unimodal and column sums inverted unimodal
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0
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22, 1066, 41257, 1467585, 47578884, 1441157406, 41206839418, 1126424633689, 29624137360831, 754958917204216, 18727101503129461, 454102386552585234
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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=3
..0..1..1..0..1..1....1..1..0..1..0..0....0..0..0..1..1..1....1..1..0..1..0..1
..1..0..0..0..0..1....1..0..0..0..1..1....1..0..1..1..0..0....1..0..1..0..1..1
..1..0..0..0..0..1....1..0..0..0..1..1....1..1..1..0..1..1....1..0..0..0..0..1
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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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