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A254737 Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column minus the sum of the minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically 1
2848, 19782, 130554, 795666, 4613180, 26334567, 148992766, 835291656, 4658392738, 25877167367, 143353076996, 792328254848, 4372508061480, 24098933827502, 132699992555054, 730161877826513, 4015459447103366 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A254743
LINKS
FORMULA
Empirical recurrence of order 57 (see link above)
EXAMPLE
Some solutions for n=3
..0..1..1..1....0..0..1..0....1..1..0..0....0..1..1..0....0..1..0..0
..0..0..0..0....0..0..0..0....0..0..1..1....0..1..0..0....0..0..1..1
..1..0..0..0....1..0..0..0....0..0..0..0....1..0..0..0....0..0..0..1
..0..0..0..0....0..0..0..0....1..0..1..1....0..0..0..0....0..0..1..1
..0..1..0..1....0..0..0..1....0..0..1..0....0..0..1..0....1..1..1..1
CROSSREFS
Sequence in context: A317473 A257155 A257148 * A234416 A218597 A259296
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2015
STATUS
approved

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Last modified September 15 22:01 EDT 2024. Contains 375955 sequences. (Running on oeis4.)