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A254843
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Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the medians of the diagonal and antidiagonal minus the two sums of the central row and column nondecreasing horizontally and vertically
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1
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293012, 645882, 1102937, 2339906, 4446577, 8565304, 15676281, 28139328, 48596429, 82388048, 136361257, 223504512, 356863993, 570593176, 914443809, 1491899182, 2395605969, 3985181976, 6852332885, 12324434772, 21543373065
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OFFSET
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1,1
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COMMENTS
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Column 6 of A254845
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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) = 8*a(n-1) -29*a(n-2) +64*a(n-3) -77*a(n-4) -56*a(n-5) +511*a(n-6) -1280*a(n-7) +1945*a(n-8) -1672*a(n-9) -379*a(n-10) +4032*a(n-11) -7559*a(n-12) +8728*a(n-13) -6355*a(n-14) +1280*a(n-15) +3836*a(n-16) -6496*a(n-17) +6188*a(n-18) -4096*a(n-19) +1856*a(n-20) -512*a(n-21) +64*a(n-22) for n>54
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EXAMPLE
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Some solutions for n=1
..0..0..0..1..1..1..0..1....0..1..0..0..0..0..0..0....0..0..0..0..1..0..1..1
..1..1..1..0..0..0..1..0....0..0..1..1..0..0..1..0....1..0..1..0..0..0..0..1
..0..1..1..1..1..0..1..1....0..0..0..0..1..1..0..1....1..1..0..0..0..1..0..1
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CROSSREFS
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Sequence in context: A219318 A255761 A255754 * A318787 A158124 A050249
Adjacent sequences: A254840 A254841 A254842 * A254844 A254845 A254846
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Feb 08 2015
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STATUS
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approved
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