A220391 Majority value maps: number of 6Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..1 6Xn array

1, 616, 22989, 715412, 34521416, 1509240923, 63512364783, 2724587924707, 116840672185170

Offset

1,2

Comments

Row 6 of A220386

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A218847 A219426 A297319 * A219415 A332161 A221040

Adjacent sequences: A220388 A220389 A220390 * A220392 A220393 A220394

Keyword

nonn

Author

R. H. Hardin Dec 13 2012

Status

approved