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A204395
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Number of (n+2)X7 0..1 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..1 introduced in row major order
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1
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61336, 1131008, 19698336, 313801352, 5406738528, 91301191200, 1536831498888, 26029238052168, 439829118347696, 7431287377932800, 125613328165459808, 2122853433439980672, 35877461084178660960, 606366376120718137800
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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..0..1..0..0..0..1....0..1..0..1..0..0..0....0..1..1..1..0..1..0
..0..1..1..0..1..0..0....1..0..0..0..1..0..0....1..0..1..1..0..1..0
..0..0..1..0..1..1..1....1..1..1..1..1..0..1....1..0..1..0..0..1..0
..1..0..1..0..0..1..0....1..0..0..1..1..1..0....0..0..1..0..1..0..0
..1..0..1..0..0..1..0....0..0..0..1..0..0..0....1..0..1..0..1..1..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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