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A251225
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Number of (n+1)X(5+1) 0..1 arrays with no 2X2 subblock having the minimum of its diagonal elements greater than the absolute difference of its antidiagonal elements
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1
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2084, 72985, 2515011, 87024544, 3007738372, 103986727042, 3594807908974, 124275144041759, 4296252165879236, 148523812761431640, 5134547519926425245, 177504075991625903000, 6136411350172751480986, 212139042310887309043390
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OFFSET
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1,1
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COMMENTS
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Column 5 of A251228
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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) = 21*a(n-1) +554*a(n-2) -1341*a(n-3) -56723*a(n-4) -7614*a(n-5) +2277951*a(n-6) +445571*a(n-7) -46434220*a(n-8) +32482888*a(n-9) +467723527*a(n-10) -889155765*a(n-11) -1188153000*a(n-12) +4147652079*a(n-13) -132672964*a(n-14) -8042725671*a(n-15) +4499239992*a(n-16) +7457116236*a(n-17) -6933658033*a(n-18) -3126154333*a(n-19) +4558838720*a(n-20) +384337441*a(n-21) -1441277326*a(n-22) +61108155*a(n-23) +221926922*a(n-24) -13300621*a(n-25) -18641195*a(n-26) -491525*a(n-27) +335825*a(n-28) +5625*a(n-29)
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EXAMPLE
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Some solutions for n=2
..1..1..0..0..1..0....1..0..1..0..0..0....0..1..1..0..1..0....0..1..1..0..0..1
..1..0..0..1..1..0....0..0..1..1..0..0....0..0..0..0..1..1....0..0..1..1..1..0
..1..0..0..0..0..0....1..1..0..1..0..0....0..0..1..0..0..1....1..1..0..0..1..0
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CROSSREFS
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Sequence in context: A343179 A323750 A323471 * A306421 A201917 A250076
Adjacent sequences: A251222 A251223 A251224 * A251226 A251227 A251228
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Nov 30 2014
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STATUS
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approved
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