A220995 Majority value maps: number of 3 X n binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..3 3 X n array.

1, 35, 324, 2899, 23895, 193052, 1550909, 12392103, 98844849, 787498031, 6270246085, 49907638031, 397162497929, 3160272329316, 25145272816990, 200066755560852, 1591791510072767, 12664659002993396

Offset

1,2

Comments

Row 3 of A220993.

Links

Table of n, a(n) for n=1..18.

Example

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

Crossrefs

Cf. A220993.

Sequence in context: A198397 A071697 A220924 * A264488 A227058 A027792

Adjacent sequences: A220992 A220993 A220994 * A220996 A220997 A220998

Keyword

nonn

Author

R. H. Hardin, Dec 28 2012

Status

approved