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A254582
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Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally
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1
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72939, 545360, 5909527, 58920922, 548753241, 5184793937, 49094787979, 464109388554, 4388623973352, 41497627764959, 392355045769673, 3709832984584812, 35077649385100542, 331666144126635733
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OFFSET
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1,1
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COMMENTS
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Column 4 of A254586
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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) = 7*a(n-1) +26*a(n-2) +22*a(n-3) -92*a(n-4) -3346*a(n-5) -3353*a(n-6) +15621*a(n-7) +56452*a(n-8) +115856*a(n-9) -415048*a(n-10) -1140576*a(n-11) +1731632*a(n-12) +3696912*a(n-13) -4777936*a(n-14) -5098384*a(n-15) +9168832*a(n-16) +297280*a(n-17) -9782784*a(n-18) +5598208*a(n-19) +3727360*a(n-20) -3596288*a(n-21) +819200*a(n-22) -147456*a(n-23) -524288*a(n-24) +262144*a(n-25) for n>32
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EXAMPLE
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Some solutions for n=1
..1..0..1..1..1..0....1..0..0..1..1..1....1..1..0..1..0..0....0..1..0..1..0..1
..1..1..0..1..1..1....0..0..0..1..0..1....1..0..1..1..1..0....0..0..0..0..1..0
..0..0..1..0..0..0....0..0..1..0..1..1....0..1..0..0..1..1....0..0..1..1..1..1
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CROSSREFS
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Sequence in context: A252333 A161730 A071145 * A254589 A254357 A031665
Adjacent sequences: A254579 A254580 A254581 * A254583 A254584 A254585
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Feb 01 2015
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STATUS
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approved
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