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A183371 Number of nX4 binary arrays with no element equal to the mod 3 sum of its diagonal and antidiagonal neighbors 1
1, 9, 16, 49, 64, 144, 729, 2304, 6724, 22500, 89401, 368449, 1399489, 5345344, 21501769, 87796900, 354531241, 1422345796, 5746246416, 23369542641, 94966283556, 385048793529, 1561870063504, 6344716152384, 25783758328441 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A183374

LINKS

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

EXAMPLE

Some solutions for 5X4

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

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

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

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

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

CROSSREFS

Sequence in context: A203595 A187087 A072861 * A225528 A039785 A303692

Adjacent sequences:  A183368 A183369 A183370 * A183372 A183373 A183374

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 2011

STATUS

approved

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Last modified June 28 21:04 EDT 2022. Contains 354907 sequences. (Running on oeis4.)