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A254815 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically 1
55904, 522294, 5525547, 52855290, 463784139, 4043573364, 32502418874, 255406348232, 1922225812231, 14057717291118, 99852950031456, 692915758685260, 4706042894458649, 31391244903621553, 206076434294104849 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A254819

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1

..0..0..0..1..1..0....0..1..1..0..1..0....1..1..0..1..1..1....0..1..0..1..1..1

..0..0..1..0..1..0....1..0..1..1..1..1....0..1..0..1..0..1....0..1..0..1..1..0

..1..1..1..0..1..1....1..1..1..1..0..1....0..1..0..0..0..1....1..0..0..1..1..0

CROSSREFS

Sequence in context: A206081 A254508 A254515 * A229436 A022224 A230336

Adjacent sequences: A254812 A254813 A254814 * A254816 A254817 A254818

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 08 2015

STATUS

approved

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Last modified February 5 18:15 EST 2023. Contains 360087 sequences. (Running on oeis4.)