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A189689 Number of n X n binary arrays without the pattern 0 0 1 diagonally, vertically or antidiagonally 1
2, 16, 292, 11637, 862652, 140346362, 43645304766, 30140493826752, 41065086729341527, 123548887542841478730, 745009928964016992782018, 9811185735768630724517609865, 262092653227176839857198569967286 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A189696

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..14

EXAMPLE

Some solutions for 3X3

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

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

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

CROSSREFS

Sequence in context: A112722 A223664 A189611 * A188740 A259647 A188985

Adjacent sequences:  A189686 A189687 A189688 * A189690 A189691 A189692

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 25 2011

STATUS

approved

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Last modified August 19 18:30 EDT 2022. Contains 356229 sequences. (Running on oeis4.)