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A254299
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 and vertically
1
512, 18098, 517934, 9867433, 201263574, 2586900868, 33988604549, 717415809480, 7290679926977, 138313192698115, 3670559003096241, 43244322834926311, 535368753213897321, 133183455081275743992, 1205154445446784431467
OFFSET
1,1
COMMENTS
Diagonal of A254306
LINKS
EXAMPLE
Some solutions for n=2
..0..1..1..0....0..1..0..1....1..1..1..0....1..1..1..1....0..1..1..0
..0..0..1..0....1..1..1..0....0..1..1..0....1..1..1..0....1..0..0..1
..1..0..0..1....1..1..0..0....1..1..1..0....1..0..1..1....0..1..1..0
..1..1..0..1....0..1..1..0....0..0..1..0....0..0..0..1....0..0..0..0
CROSSREFS
Sequence in context: A195657 A072369 A140251 * A283340 A321833 A351197
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2015
STATUS
approved