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A254252 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
512, 14681, 268900, 2983064, 35691048, 325742026, 3756830312, 53130567141, 538163662362, 8068163879144, 153117743133240, 1493329979839859, 22285849665127808, 1767418588341588795, 9961527956307703614 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A254260
LINKS
EXAMPLE
Some solutions for n=2
..0..0..1..0....0..1..0..0....0..1..1..0....1..1..0..1....0..1..1..1
..1..1..1..1....1..0..0..0....1..1..1..0....1..1..0..1....1..1..1..1
..0..1..0..0....1..1..0..0....0..0..1..0....1..1..0..1....1..0..0..1
..0..0..1..1....1..1..0..1....1..1..0..0....1..0..0..0....1..1..1..0
CROSSREFS
Sequence in context: A253812 A256947 A254720 * A200791 A254812 A329894
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2015
STATUS
approved

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Last modified March 28 04:13 EDT 2024. Contains 371235 sequences. (Running on oeis4.)