A221037 Majority value maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..2 3Xn array

1, 21, 228, 1733, 14277, 110506, 870027, 6717882, 52248430, 404872294, 3137029417, 24306328888, 188293396538, 1458607561162, 11298886140485, 87523428512115, 677973532822056, 5251692364017630, 40680417109724197, 315116602409454269

Offset

1,2

Comments

Row 3 of A221035

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A231513 A332908 A027508 * A221500 A161518 A162360

Adjacent sequences: A221034 A221035 A221036 * A221038 A221039 A221040

Keyword

nonn

Author

R. H. Hardin Dec 29 2012

Status

approved