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

876277, 189197280, 27127649888, 5319044439319, 894001153490556, 164418838931876650, 29011762459538515234, 5247595940683112951878, 938963349063508187379376, 169141748781750276644640886

Offset

1,1

Comments

Row 7 of A254422

Links

R. H. Hardin, Table of n, a(n) for n = 1..162

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

Adjacent sequences: A254425 A254426 A254427 * A254429 A254430 A254431

Keyword

nonn

Author

R. H. Hardin, Jan 30 2015

Status

approved