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A258505
Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
2679, 12156, 56526, 304844, 1627220, 8659189, 46288077, 247098224, 1317234754, 7027083732, 37495141913, 200030678904, 1067066745518, 5692349807117, 30366101605335, 161987364711005, 864111537226175, 4609528214184782
OFFSET
1,1
COMMENTS
Column 2 of A258511
LINKS
EXAMPLE
Some solutions for n=3
..1..0..0..1....0..1..1..0....0..0..0..0....0..1..1..0....0..0..1..1
..0..0..0..1....1..1..1..1....1..0..0..1....1..0..0..1....1..1..1..0
..0..0..0..0....1..1..0..0....0..0..0..0....0..1..1..0....1..1..0..0
..0..0..0..0....1..0..0..0....0..0..0..1....1..1..1..1....0..0..0..0
..0..1..1..1....0..1..1..0....1..1..0..0....0..1..1..1....0..0..0..0
CROSSREFS
Sequence in context: A166513 A345569 A345825 * A258512 A254992 A252210
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 01 2015
STATUS
approved