A220228 Majority value maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 3Xn array

1, 19, 115, 694, 4244, 25771, 156627, 952152, 5791155, 35212909, 214118912, 1302044409, 7917515074, 48145113993, 292763221173, 1780247911592, 10825410249051, 65827639273982, 400287647868551, 2434086938990655

Offset

1,2

Comments

Row 3 of A220226

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

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

Crossrefs

Sequence in context: A142370 A084751 A041694 * A027460 A213556 A293879

Adjacent sequences: A220225 A220226 A220227 * A220229 A220230 A220231

Keyword

nonn

Author

R. H. Hardin Dec 08 2012

Status

approved