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A254301
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Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally and vertically
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1
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12616, 93326, 517934, 2530381, 13348182, 69860227, 375506912, 2051413540, 11310694254, 62889999700, 351655793662, 1970566420399, 11065476492562, 62188075983543, 349725627460782, 1967369841833464, 11069592090734828
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OFFSET
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1,1
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COMMENTS
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Column 3 of A254306
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..210
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FORMULA
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Empirical: a(n) = 10*a(n-1) -17*a(n-2) -84*a(n-3) +260*a(n-4) -164*a(n-5) -564*a(n-6) +2856*a(n-7) +11170*a(n-8) -41228*a(n-9) -72878*a(n-10) +251424*a(n-11) -198452*a(n-12) -328104*a(n-13) +2628780*a(n-14) +4648696*a(n-15) -20786505*a(n-16) -29452526*a(n-17) +74588439*a(n-18) +73057204*a(n-19) -41058408*a(n-20) -209594372*a(n-21) -74206736*a(n-22) +213851488*a(n-23) -212060864*a(n-24) +1110211136*a(n-25) -353377472*a(n-26) -1735241984*a(n-27) +1881662208*a(n-28) -2041185792*a(n-29) +721603584*a(n-30) +3116957696*a(n-31) -3646394368*a(n-32) +2008072192*a(n-33) -474447872*a(n-34) -2278555648*a(n-35) +2827354112*a(n-36) -1106116608*a(n-37) +103284736*a(n-38) +605028352*a(n-39) -788529152*a(n-40) +268435456*a(n-41) for n>47
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EXAMPLE
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Some solutions for n=2
..1..1..0..0..0....1..0..0..0..0....0..1..0..0..1....1..0..0..1..1
..0..1..0..1..1....0..1..0..1..0....0..1..1..1..1....0..0..0..0..1
..1..1..1..0..0....0..1..0..1..0....1..1..0..1..0....0..1..1..0..0
..1..0..0..1..1....0..0..0..0..1....1..0..1..0..0....1..0..1..1..1
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CROSSREFS
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Sequence in context: A219332 A254262 A254255 * A237388 A185529 A078957
Adjacent sequences: A254298 A254299 A254300 * A254302 A254303 A254304
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Jan 27 2015
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STATUS
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approved
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