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A208113 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically 1
2, 16, 90, 625, 7315, 130321, 1432600, 17850625, 339961440, 8208541201, 137250396283, 2528484794641, 64191779662920, 1915940360359936, 43397063924977512, 1065586805357114881, 33367357471586657167 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A208118

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..38

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A253487 A207019 A207164 * A207448 A207362 A208008

Adjacent sequences: A208110 A208111 A208112 * A208114 A208115 A208116

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 23 2012

STATUS

approved

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Last modified February 3 10:55 EST 2023. Contains 360034 sequences. (Running on oeis4.)