A229933 Number of nX7 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value 2-x(i,j)

63, 187211, 174306687, 183213209145, 189537122520529, 195955071996200947, 202902063153139301263, 210073683026638667977949, 217469679800421836913361917, 225130067038542417663060555935

Offset

1,1

Comments

Column 7 of A229934

Links

R. H. Hardin, Table of n, a(n) for n = 1..37

Example

Some solutions for n=3
..0..0..0..0..2..1..1....0..0..0..0..2..1..1....0..0..0..0..0..2..0
..2..0..2..2..2..0..0....2..0..2..0..1..2..2....2..0..2..1..1..2..0
..0..0..1..1..1..0..2....0..0..0..2..0..0..2....0..0..2..0..0..2..2

Crossrefs

Sequence in context: A069452 A229846 A230674 * A230175 A263164 A132591

Adjacent sequences: A229930 A229931 A229932 * A229934 A229935 A229936

Keyword

nonn

Author

R. H. Hardin, Oct 04 2013

Status

approved