A220224 Majority value maps: number of n X 4 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 n X 4 array.

7, 51, 694, 8819, 110911, 1409467, 17911553, 227545744, 2891148146, 36733858686, 466722630011

Offset

1,1

Comments

Column 4 of A220226.

Links

Table of n, a(n) for n=1..11.

Example

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

Crossrefs

Cf. A220226.

Sequence in context: A081216 A198087 A124271 * A198007 A156751 A352242

Adjacent sequences: A220221 A220222 A220223 * A220225 A220226 A220227

Keyword

nonn

Author

R. H. Hardin, Dec 08 2012

Status

approved