A183373 Number of nX6 binary arrays with no element equal to the mod 3 sum of its diagonal and antidiagonal neighbors

1, 25, 64, 144, 625, 3969, 22801, 104329, 580644, 3763600, 23707161, 144480400, 910470276, 5844449601, 37337446441, 237578256400, 1520187895681, 9757501690000, 62593240504921, 401316721817881, 2575276886918596

Offset

1,2

Comments

Column 6 of A183374

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 5X6
..0..1..1..1..0..1....0..0..1..1..0..0....0..0..0..1..1..0....1..0..1..0..0..0
..0..1..0..1..0..1....0..1..1..1..1..0....0..1..1..0..1..0....1..0..1..0..1..1
..1..1..1..1..0..1....1..1..0..1..1..0....0..1..0..0..0..1....0..0..0..0..0..0
..0..1..0..0..0..0....0..1..1..1..0..0....1..0..1..0..1..1....1..1..1..0..1..0
..0..1..0..1..1..1....0..0..1..0..0..1....1..1..1..1..0..0....0..0..0..0..1..0

Crossrefs

Sequence in context: A103645 A061970 A159008 * A354381 A306358 A120961

Adjacent sequences: A183370 A183371 A183372 * A183374 A183375 A183376

Keyword

nonn

Author

R. H. Hardin Jan 04 2011

Status

approved