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A188688 Number of n X n binary arrays without the pattern 0 1 0 diagonally, vertically, antidiagonally or horizontally 0
2, 16, 218, 4008, 139307, 15547072, 3647921173, 1302269111985, 832889881464413, 1248703703842553735, 4253189666054817624993 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A188695

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for 4X4

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

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

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

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

CROSSREFS

Sequence in context: A012164 A264543 A223638 * A188844 A187657 A047657

Adjacent sequences:  A188685 A188686 A188687 * A188689 A188690 A188691

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 08 2011

STATUS

approved

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Last modified January 22 05:19 EST 2022. Contains 350481 sequences. (Running on oeis4.)