A189335 - OEIS

A189335

Number of n X n binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally

2, 16, 512, 36626, 6814820, 2650369322, 2739456017053, 6190300153637745

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Diagonal of A189343

LINKS

EXAMPLE

Some solutions for 4X4

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

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

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

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

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved