A219005 Unmatched value maps: number of 4Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..2 4Xn array

1, 126, 2374, 31857, 462668, 7027671, 105807897, 1583929029, 23732266546, 355842741628, 5335066750849

Offset

1,2

Comments

Row 4 of A219002

Links

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

Example

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

Crossrefs

Sequence in context: A331100 A196414 A133499 * A202398 A113857 A267282

Adjacent sequences: A219002 A219003 A219004 * A219006 A219007 A219008

Keyword

nonn

Author

R. H. Hardin Nov 09 2012

Status

approved