A232264 Number of (7+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor

63235, 74175439, 114676900023, 230487644229167, 482023848904207049, 982662236299437938725, 2008977605538697290717011, 4109772937808323696090366149, 8407091606181191851456912746227

Offset

1,1

Comments

Row 7 of A232257

Links

R. H. Hardin, Table of n, a(n) for n = 1..15

Example

Some solutions for n=1
..2..2....0..0....0..0....1..1....1..1....0..0....1..1....0..0....1..1....2..2
..1..1....2..2....0..0....1..0....1..0....2..2....1..1....2..2....2..2....2..2
..1..0....0..0....0..0....0..0....0..1....1..0....2..2....1..1....1..0....2..1
..0..2....2..2....2..2....0..0....1..1....0..1....2..2....2..2....0..0....1..1
..2..0....1..1....1..1....2..2....1..1....2..2....2..2....2..2....2..2....2..2
..0..1....0..0....0..0....1..0....0..0....0..0....0..0....2..2....2..2....0..0
..1..1....2..2....1..2....0..0....1..1....2..2....2..2....0..0....1..1....0..2
..0..0....0..0....2..2....0..0....2..2....1..1....1..1....0..0....0..0....2..2

Crossrefs

Sequence in context: A322679 A322689 A234080 * A209713 A230681 A209793

Adjacent sequences: A232261 A232262 A232263 * A232265 A232266 A232267

Keyword

nonn

Author

R. H. Hardin, Nov 21 2013

Status

approved