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A254182 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
512, 20380, 1465824, 199474076, 50440581336, 26662412680392, 28902004996988096, 64912533317775080772, 309602073337338501992260, 3117741299216294644028911064, 66338032391981054340065696682260 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A254189

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..12

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A254914 A186831 A236215 * A253954 A264108 A254353

Adjacent sequences:  A254179 A254180 A254181 * A254183 A254184 A254185

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2015

STATUS

approved

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Last modified July 5 23:36 EDT 2020. Contains 335475 sequences. (Running on oeis4.)