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A188560 Number of n X n binary arrays without the pattern 1 1 1 diagonally, vertically or horizontally 1
2, 16, 247, 13306, 2109386, 924245906, 1199747927824, 4515869742994831, 49132225919211100127, 1553292806575822383425281, 142435222420745509758550159896, 37880215295994989398957106920807127 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A188567

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..13

EXAMPLE

Some solutions for 3X3

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

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

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

CROSSREFS

Sequence in context: A217815 A192325 A009233 * A012462 A012457 A138764

Adjacent sequences:  A188557 A188558 A188559 * A188561 A188562 A188563

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 04 2011

STATUS

approved

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Last modified September 25 15:54 EDT 2022. Contains 356986 sequences. (Running on oeis4.)