A221504 Majority value maps: number of 7 X n binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..3 7 X n array.

1, 1897, 495329, 68933905, 10385011060, 1381866811158, 184428463987187

Offset

1,2

Comments

Row 7 of A221499.

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Cf. A221499.

Sequence in context: A220392 A219416 A221041 * A157760 A204479 A251346

Adjacent sequences: A221501 A221502 A221503 * A221505 A221506 A221507

Keyword

nonn

Author

R. H. Hardin, Jan 18 2013

Status

approved