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A207351 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically 1
42, 1764, 8928, 43260, 186002, 684324, 2367656, 8000806, 26057006, 82907430, 260627110, 806084422, 2476671718, 7545089216, 22861190904, 68993933764, 207422313718, 622180142516, 1862113694818, 5564560256320, 16608301418960 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A207346
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..1....0..1..0..0....1..0..1..0....0..1..0..0....1..1..1..1
..1..0..0..1....0..1..0..1....0..0..1..0....0..1..0..1....1..1..0..1
..0..0..1..0....1..0..1..0....1..1..0..1....1..0..1..0....0..0..1..0
..1..1..1..0....1..0..0..1....1..0..1..0....1..1..1..0....1..1..1..1
..1..0..0..1....0..1..0..1....0..1..0..0....0..1..0..1....0..1..0..1
..0..1..0..1....1..0..1..0....1..0..0..1....1..0..0..1....0..0..1..0
..0..0..1..0....1..1..0..1....1..0..1..0....0..0..1..0....1..1..1..0
CROSSREFS
Sequence in context: A207850 A208839 A208687 * A207773 A207900 A207660
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 17 2012
STATUS
approved

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Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)