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A253516
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal minimum minus antidiagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal maximum nondecreasing vertically
0
81, 2724, 30013, 162815, 673229, 2662626, 10168992, 38531995, 145820265, 550386072, 2065878028
OFFSET
1,1
Diagonal of A253524
EXAMPLE
Some solutions for n=4
..1..2..2..0..0....0..0..0..1..2....1..2..2..2..1....0..2..2..2..0
..1..2..2..0..0....0..0..0..0..0....0..0..1..2..2....0..2..2..2..0
..2..2..1..0..0....1..1..1..1..0....1..0..1..2..2....2..2..2..2..2
..2..1..0..0..0....1..1..1..1..0....2..0..1..2..2....2..0..0..0..2
..1..0..0..1..1....1..0..0..0..1....2..0..1..2..2....1..0..0..0..2
CROSSREFS
Sequence in context: A206660 A253525 A253741 * A038398 A205902 A295252
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 03 2015
STATUS
approved

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Last modified September 20 13:29 EDT 2024. Contains 376072 sequences. (Running on oeis4.)