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A279970
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Number of n X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
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0
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0, 3, 50, 1922, 124030, 14787217, 3444870482, 1641425782980, 1628526202127628, 3404399281023205196, 15152580196285407820510
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
..0..1..1..0. .0..1..0..0. .0..1..0..0. .0..1..0..1. .0..1..0..0
..1..0..0..1. .1..1..1..0. .0..1..1..0. .0..0..0..1. .0..1..1..0
..1..0..1..0. .0..0..1..0. .1..0..1..0. .1..1..0..1. .0..0..0..1
..0..1..0..1. .1..1..0..1. .0..0..1..1. .1..1..0..1. .1..1..1..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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