A221495 Majority value maps: number of n 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 n X n array

1, 7, 228, 24485, 12253352, 23379869304, 184428463987187, 5729938855632345013

Offset

1,2

Comments

Diagonal of A221499

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Sequence in context: A093167 A157693 A221029 * A343128 A142116 A201955

Adjacent sequences: A221492 A221493 A221494 * A221496 A221497 A221498

Keyword

nonn

Author

R. H. Hardin Jan 18 2013

Status

approved