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A207711 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 0 vertically 1
2, 16, 114, 2205, 97580, 10150118, 2433018665, 1332236625328, 1658417176295910, 4680320299339768945, 29900757895299392674248, 432064042048194196301219286, 14114419978195735103237247653751, 1042092211595049585701702108677740928 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207717

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..20

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A207420 A207736 A208364 * A162723 A288964 A193289

Adjacent sequences:  A207708 A207709 A207710 * A207712 A207713 A207714

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 19 2012

STATUS

approved

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Last modified May 16 14:39 EDT 2021. Contains 343949 sequences. (Running on oeis4.)