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A254914
Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and central column plus the two minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically
1
512, 19890, 1041262, 28576911, 549282376, 7539746842, 82012007541, 1556819513546, 17747014175801, 264891745874783, 7544378754973669, 128524099836716025, 1084428849732639859, 284665689827815340390
OFFSET
1,1
COMMENTS
Diagonal of A254922
LINKS
EXAMPLE
Some solutions for n=2
..0..0..1..1....1..0..1..0....1..1..0..0....0..0..1..0....0..0..0..0
..0..1..1..1....0..0..0..0....0..0..0..1....0..1..0..0....0..0..0..0
..1..1..1..1....1..0..1..0....0..0..1..1....0..0..1..1....0..0..0..1
..1..1..1..1....0..1..1..1....1..0..0..1....1..0..0..1....0..1..1..0
CROSSREFS
Sequence in context: A096962 A231308 A254735 * A186831 A236215 A254182
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 10 2015
STATUS
approved