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A253330
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Number of (5+1)X(n+1) 0..1 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw
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1
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676, 2042, 6190, 19312, 58505, 173903, 503944, 1397185, 3802746, 9816070, 25016754, 60535988, 145230766, 332520929, 757040896, 1655009001, 3605466139, 7587808715, 15940578578, 32532048134, 66375799304, 132239420396
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OFFSET
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1,1
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COMMENTS
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Row 5 of A253326
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..210
R. H. Hardin, Empirical recurrence of order 63
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FORMULA
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Empirical recurrence of order 63 (see link above)
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EXAMPLE
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Some solutions for n=4
..0..0..0..0..0....0..0..0..1..1....0..0..1..0..1....1..1..0..1..0
..0..0..0..0..0....0..0..0..0..0....1..0..0..0..1....0..0..1..0..1
..0..0..0..0..0....0..0..1..1..1....0..0..1..1..0....1..1..1..1..1
..0..0..1..0..1....0..1..0..0..0....0..1..0..0..1....1..0..1..0..1
..1..0..0..0..1....1..0..1..1..1....1..0..1..1..1....1..1..1..1..1
..0..1..1..1..1....0..1..0..1..1....1..0..1..1..1....0..1..0..1..1
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CROSSREFS
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Sequence in context: A064963 A300984 A185794 * A255076 A253323 A281405
Adjacent sequences: A253327 A253328 A253329 * A253331 A253332 A253333
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Dec 30 2014
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STATUS
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approved
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