login
A219148
Unchanging value maps: number of 7Xn binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 7Xn array
0
1, 1157, 25277, 472638, 9702349, 191707377, 3862325048, 78006637065, 1583568237267, 32151936434405
OFFSET
1,2
COMMENTS
Row 7 of A219142
EXAMPLE
Some solutions for n=3
..1..1..1....1..0..0....0..0..1....1..0..0....1..1..1....0..0..0....0..0..1
..1..0..1....1..0..1....0..0..1....0..0..0....1..0..1....0..1..0....0..0..0
..1..0..0....0..0..1....0..0..1....0..0..1....0..0..0....1..1..1....1..0..0
..0..0..1....1..0..0....0..0..0....1..0..1....1..0..0....1..1..1....0..0..0
..1..0..0....1..0..0....1..0..0....0..0..0....1..0..1....0..0..0....1..0..0
..0..0..0....0..0..1....1..0..0....0..0..0....0..0..0....0..0..0....1..0..0
..1..0..0....0..0..1....1..0..0....0..0..0....1..0..0....0..0..0....0..0..1
CROSSREFS
Sequence in context: A217279 A204478 A031746 * A031532 A168248 A237205
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 12 2012
STATUS
approved