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A254428
Number of (7+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
876277, 189197280, 27127649888, 5319044439319, 894001153490556, 164418838931876650, 29011762459538515234, 5247595940683112951878, 938963349063508187379376, 169141748781750276644640886
OFFSET
1,1
COMMENTS
Row 7 of A254422
LINKS
EXAMPLE
Some solutions for n=1
..0..1....1..2....1..1....1..1....1..2....2..2....0..2....1..1....0..2....1..1
..0..0....0..1....0..0....0..1....0..1....0..0....0..0....0..0....0..0....0..0
..1..0....1..0....1..1....2..2....0..0....0..0....1..0....2..2....2..0....2..2
..2..2....2..2....0..1....2..2....1..1....1..1....1..1....2..1....2..0....2..0
..0..1....2..2....0..1....2..2....2..2....0..1....1..0....2..0....2..1....2..1
..0..1....2..0....2..2....1..1....2..2....0..1....2..2....2..2....2..2....2..2
..2..2....2..1....1..0....1..0....0..0....1..1....2..0....2..2....2..2....2..2
..1..2....1..1....0..1....0..2....0..0....2..2....0..2....0..1....0..2....0..2
CROSSREFS
Sequence in context: A271263 A253523 A254421 * A271264 A224595 A254387
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 30 2015
STATUS
approved