A218845 - OEIS

A218845

Unmatched value maps: number of 4Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 4Xn array

1, 65, 436, 3617, 26635, 201960, 1530846, 11617859, 88207678, 669575111, 5082650645, 38581655789, 292872656082, 2223190550341, 16876170296292, 128106451991984, 972451948238336, 7381852115978817, 56035406540101182

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Row 4 of A218842

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..37

EXAMPLE

Some solutions for n=3

..0..0..1....1..0..0....1..0..0....1..0..0....1..1..0....0..0..1....1..1..0

..1..0..0....1..0..1....1..0..1....0..0..0....0..0..1....0..0..0....0..0..1

..0..1..1....1..0..0....0..0..1....0..0..1....1..0..0....1..0..0....1..0..0