A183369 Number of n X n binary arrays with no element equal to the mod 3 sum of its diagonal and antidiagonal neighbors

1, 4, 6, 49, 195, 3969, 285516, 22743361, 3414837564, 1467194393284, 1549197261403648, 3156509484479021584, 11694530363878786782540, 91853775938916496321710336

Offset

1,2

Comments

Diagonal of A183374

Links

Table of n, a(n) for n=1..14.

Example

Some solutions for 5X5
..1..1..0..1..0....0..1..0..0..0....0..1..0..0..1....0..0..1..1..0
..0..0..0..1..0....1..1..1..1..0....0..1..0..0..1....1..1..0..1..0
..0..1..1..1..1....0..1..0..1..0....1..1..1..0..0....1..0..0..1..1
..0..1..0..1..0....0..0..1..0..1....0..1..0..1..1....1..1..0..1..0
..0..1..1..1..0....1..0..1..1..1....0..1..1..0..0....0..0..1..1..0

Crossrefs

Sequence in context: A355231 A066348 A330978 * A241159 A116656 A012933

Adjacent sequences: A183366 A183367 A183368 * A183370 A183371 A183372

Keyword

nonn

Author

R. H. Hardin Jan 04 2011

Status

approved