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A259009 Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
34698, 59549, 116098, 225215, 402742, 780329, 1284465, 2218382, 3724801, 6307988, 10527894, 17501266, 28940280, 47007866, 75374462, 120165915, 189056785, 293834152, 452340776, 689561240, 1040594004, 1555721598, 2303970789 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A259006
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1..1..0....0..1..0..0..0....1..1..0..1..1....1..0..1..1..1
..0..0..0..0..1....0..0..0..0..0....1..0..0..0..1....0..0..0..0..1
..0..0..1..0..1....0..0..1..0..1....0..0..0..0..1....0..1..0..1..0
..1..0..1..0..1....1..0..1..0..1....0..1..1..1..1....0..1..0..1..1
..1..0..1..1..1....0..1..1..1..1....0..1..1..1..0....0..1..0..1..1
..1..1..0..0..1....0..0..0..1..0....0..1..1..1..1....1..1..1..1..1
CROSSREFS
Sequence in context: A172681 A251448 A259002 * A256900 A236141 A103911
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 16 2015
STATUS
approved

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Last modified April 23 14:15 EDT 2024. Contains 371914 sequences. (Running on oeis4.)