A253998 Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

914112, 11055001, 175815629, 2421183428, 36681094867, 592324411676, 9417047685594, 148847562004630, 2395493172677595, 38596482561113559, 620344636127699782, 9996056173802222627, 161265688229200688374

Offset

1,1

Comments

Row 6 of A253993

Links

R. H. Hardin, Table of n, a(n) for n = 1..58

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

Crossrefs

Sequence in context: A112688 A273356 A253991 * A258908 A259012 A259005

Adjacent sequences: A253995 A253996 A253997 * A253999 A254000 A254001

Keyword

nonn

Author

R. H. Hardin, Jan 21 2015

Status

approved