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A253996
Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
51856, 406183, 3678188, 30663580, 266574705, 2365554897, 20976836853, 183417881138, 1611843610363, 14153919020809, 124080618908089, 1086470007661388, 9513144466402410, 83219752120736303, 727529183808379802
OFFSET
1,1
COMMENTS
Row 4 of A253993
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0....0..0..0....0..0..0....1..1..0....0..0..0....1..1..0....1..0..0
..1..1..0....0..0..0....0..1..0....1..0..1....0..0..0....1..0..1....0..1..1
..0..1..1....1..0..0....0..1..1....1..1..1....0..0..1....1..0..0....0..1..1
..0..1..1....0..0..0....1..1..0....1..0..1....0..0..0....0..1..1....1..1..0
..0..0..0....1..1..0....0..0..0....1..0..1....0..0..0....1..1..1....1..1..1
..1..0..0....1..1..0....1..0..1....1..0..1....1..1..1....1..1..1....1..0..0
CROSSREFS
Sequence in context: A184454 A003134 A253989 * A258906 A234181 A031679
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 21 2015
STATUS
approved