A254495 Number of (5+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

660480, 21641920, 640020096, 20457240960, 615887502592, 18812857512320, 566704583699968, 17139805682909312, 515235032546818816, 15544467915423093120, 467857407183835369472, 14104143870551705257088

Offset

1,1

Comments

Row 5 of A254491

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=1
..0..0..0....0..0..1....0..0..0....0..0..0....0..0..1....0..0..0....1..0..0
..0..0..0....0..0..0....0..0..0....1..0..0....1..0..0....0..1..1....0..1..1
..0..0..1....1..0..1....1..0..0....0..0..0....1..0..0....0..0..1....0..0..0
..1..0..1....1..0..1....0..1..0....0..1..0....0..1..0....1..0..1....1..1..1
..0..1..1....0..1..0....0..0..0....1..1..1....0..1..1....0..0..1....0..1..1
..0..1..0....0..1..1....1..0..1....1..0..1....0..0..1....0..0..1....0..1..0
..1..1..0....0..1..1....1..1..1....1..1..1....1..1..1....0..1..1....0..0..0

Crossrefs

Sequence in context: A216123 A282356 A114678 * A254488 A253860 A203396

Adjacent sequences: A254492 A254493 A254494 * A254496 A254497 A254498

Keyword

nonn

Author

R. H. Hardin, Jan 31 2015

Status

approved