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A233797 Number of (n+2) X (2+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards. 1
7949773, 1231134446, 184701585960, 27653665556487, 4128363478149117, 616170589022493877, 91941352219976949775, 13718603645716931922312, 2046910445128969814115728, 305412394098009944938215077 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A233801.
LINKS
EXAMPLE
Some solutions for n=1
..0..0..2..0....0..1..0..1....0..1..1..1....0..0..0..0....0..0..0..1
..0..0..0..1....1..0..0..0....0..2..2..0....0..2..2..3....1..3..1..1
..1..1..3..1....0..0..0..3....1..0..0..3....1..0..2..1....1..0..0..0
CROSSREFS
Cf. A233801.
Sequence in context: A346029 A237338 A360905 * A203504 A233803 A204970
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 16 2013
STATUS
approved

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Last modified November 29 22:05 EST 2023. Contains 367452 sequences. (Running on oeis4.)