A254496 - OEIS

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A254496

Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

3727552, 186176000, 8348864128, 410404894080, 18731454463744, 871411470160000, 39847094492435712, 1831452813902816384, 83780252884746539264, 3852333354449454864000, 176605048902403003470080

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Row 6 of A254491

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for n=1

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

..0..0..1....0..0..0....0..0..1....0..0..0....0..0..1....1..0..0....0..0..1

..1..0..0....0..0..1....1..0..0....0..0..0....0..0..0....0..0..1....1..0..0

..1..0..1....1..0..1....1..1..0....1..0..0....1..1..0....1..0..0....1..1..0

..1..0..1....1..0..1....1..0..0....1..0..0....1..1..0....1..1..1....0..0..0

..1..0..1....1..0..1....0..0..1....0..0..0....0..0..1....0..0..0....1..1..1

..0..0..1....1..1..0....0..0..0....1..1..1....0..0..0....1..1..0....1..0..0

..1..1..1....0..0..0....0..0..1....1..0..0....1..1..1....0..0..0....0..1..0

CROSSREFS

Sequence in context: A216002 A187644 A136287 * A254489 A253861 A114683

Adjacent sequences: A254493 A254494 A254495 * A254497 A254498 A254499

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 31 2015

STATUS

approved