A220925 Majority value maps: number of 4Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 4Xn array

1, 132, 2456, 48021, 807720, 13318834, 216461890, 3488430277, 55993994671

Offset

1,2

Comments

Row 4 of A220922

Links

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

Example

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

Crossrefs

Sequence in context: A282751 A129975 A064303 * A220996 A254646 A242147

Adjacent sequences: A220922 A220923 A220924 * A220926 A220927 A220928

Keyword

nonn

Author

R. H. Hardin Dec 25 2012

Status

approved