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A236494 Number of (5+1)X(n+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise 1
167095, 33951181, 6319589033, 1095464601321, 182308906034159, 29439585362614471, 4665191068857484233, 729932548830479987349, 113283931213865070438195, 17489434164403493554005395 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A236490

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..30

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

CROSSREFS

Sequence in context: A235846 A187170 A047829 * A236489 A235436 A262802

Adjacent sequences:  A236491 A236492 A236493 * A236495 A236496 A236497

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2014

STATUS

approved

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Last modified December 6 13:45 EST 2021. Contains 349563 sequences. (Running on oeis4.)