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A257188 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
2462249, 21367247, 375658160, 7875023930, 156549880736, 3282787941884, 70497822050321, 1484414256002804, 31272262583077260, 662554668191631490, 14020929804464669108, 296312633506422966743, 6267103481316509058453 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A257189
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..1..0..1..1..0....0..0..0..0..0..0..1..1..0
..0..1..0..0..0..0..0..0..1....0..0..0..0..0..0..1..0..1
..0..0..0..0..0..0..0..0..1....1..0..1..0..0..1..1..0..0
CROSSREFS
Sequence in context: A144588 A022216 A257195 * A254988 A097968 A205025
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 17 2015
STATUS
approved

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Last modified May 15 02:58 EDT 2024. Contains 372536 sequences. (Running on oeis4.)