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A236489 Number of (n+1)X(5+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise 1
167095, 34149421, 6339553813, 1098468030593, 182308906034159, 29352647489506731, 4636588642195617443, 723366272707534050409, 111992223008008443804229, 17257057210291847731653735 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A236490

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..37

EXAMPLE

Some solutions for n=1

..0..0..0..0..0..0....0..0..0..2..0..2....1..0..0..0..2..0....1..1..2..0..1..1

..0..0..2..2..1..2....2..2..0..2..1..1....0..0..1..0..2..0....1..0..0..2..2..0

CROSSREFS

Sequence in context: A187170 A047829 A236494 * A235436 A262802 A247994

Adjacent sequences:  A236486 A236487 A236488 * A236490 A236491 A236492

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2014

STATUS

approved

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Last modified January 26 16:30 EST 2021. Contains 340442 sequences. (Running on oeis4.)