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A235442
Number of (n+1)X(n+1) 0..1 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise
0
16, 382, 28962, 7017768, 5485253042, 13868068262164, 113555975474406500, 3012872125570872924612
OFFSET
1,1
COMMENTS
Diagonal of A235449
EXAMPLE
Some solutions for n=3
..1..1..0..1....0..1..0..1....0..0..1..1....0..0..1..1....1..1..1..1
..1..1..0..1....1..0..1..0....0..0..1..0....0..1..0..1....0..0..1..0
..1..0..0..1....0..1..0..1....0..0..1..1....1..1..1..0....1..1..1..0
..1..1..1..0....1..1..1..1....1..1..1..0....0..0..0..1....0..1..0..1
CROSSREFS
Sequence in context: A235672 A235729 A189766 * A343213 A340689 A302262
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 10 2014
STATUS
approved