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A227059
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Number of nX5 -2..2 arrays of 2X2 subblock diagonal sums minus antidiagonal sums for some (n+1)X6 binary array with rows and columns of the latter in lexicographically nondecreasing order
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1
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56, 777, 11810, 183000, 2625106, 33345171, 371484306, 3651371505, 32017940207, 253426591748, 1830279313794, 12175210709491, 75202293506194, 434279600673275, 2358572224659638, 12108001563352776, 59013152727127909
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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..0.-2..1....1..0.-2..0..1....0..0..1..0.-1...-2..1..0..0..0
..0.-2..1..0.-1....0..0..1..0.-1....0..0..0..0..0....1.-2..0..0..1
..0..1.-2..2..0...-2..1.-1..1..0....1..0.-2..1..0....0..1..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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