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A189338 Number of nX4 binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally 1
15, 225, 3375, 36626, 390721, 3988168, 42069350, 442969881, 4709354541, 49857094654, 528436125424, 5591212296038, 59196669906872, 626540356943069, 6633322246811551, 70220475509151710, 743409267344795743 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A189343

LINKS

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

EXAMPLE

Some solutions for 5X4

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

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

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

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

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

CROSSREFS

Sequence in context: A262336 A189906 A189900 * A189774 A189156 A267731

Adjacent sequences:  A189335 A189336 A189337 * A189339 A189340 A189341

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 20 2011

STATUS

approved

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Last modified January 22 00:08 EST 2022. Contains 350481 sequences. (Running on oeis4.)