A237761 Number of (n+2)X(2+2) 0..2 arrays with the (lower) medians of each row unequal to its neighbors and each column equal to its neighbors

8820, 357444, 43136424, 2003366400, 168088619064, 8677001936104, 568560361960824, 30824442951472416

Offset

1,1

Comments

Column 2 of A237762

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A230335 A183752 A109027 * A186582 A147529 A255089

Adjacent sequences: A237758 A237759 A237760 * A237762 A237763 A237764

Keyword

nonn

Author

R. H. Hardin, Feb 12 2014

Status

approved