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A251909
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T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 4 or 5
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4
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9552, 87472, 87472, 910694, 1524496, 910694, 9385210, 31829596, 31829596, 9385210, 97416802, 634891856, 1346875728, 634891856, 97416802, 1020849168, 13021221976, 55159959296, 55159959296, 13021221976, 1020849168, 10715275730
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OFFSET
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1,1
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COMMENTS
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Table starts
.........9552.........87472..........910694.........9385210........97416802
........87472.......1524496........31829596.......634891856.....13021221976
.......910694......31829596......1346875728.....55159959296...2346358649878
......9385210.....634891856.....55159959296...4659453629112.405801426711494
.....97416802...13021221976...2346358649878.405801426711494
...1020849168..273455709590.101807826393734
..10715275730.5736244294410
.112555491252
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LINKS
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EXAMPLE
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Some solutions for n=1 k=4
..1..1..1..1..3..1....2..3..3..3..3..2....3..3..3..3..2..3....1..1..1..3..1..1
..1..1..1..1..1..1....3..3..3..3..3..3....3..2..3..3..3..2....3..1..1..1..1..3
..1..1..1..1..1..1....3..3..3..3..2..3....3..3..3..3..3..3....1..1..1..1..1..1
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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