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A235960 Number of (n+1)X(6+1) 0..1 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise 1
2866, 48848, 681546, 8974124, 112308598, 1374773712, 16500794898, 195824119834, 2302059880080, 26894984140858, 312669763548608, 3622535721245624, 41859583600520154, 482790572082345160, 5560373260715567600 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A235962

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..126

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A233379 A192087 A286007 * A235571 A327376 A254587

Adjacent sequences:  A235957 A235958 A235959 * A235961 A235962 A235963

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 17 2014

STATUS

approved

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Last modified September 18 13:51 EDT 2021. Contains 347527 sequences. (Running on oeis4.)