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A233594 Number of (n+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards 0
15272, 20463326, 193816724926, 13036676136198570, 6217400227849213336029, 21035300720988185135892977193, 504952565127306851299571097075003261, 86012703850284916544804503539506332380421824 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A233602

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=1

..2..1..2....2..2..2....2..2..2....1..1..2....1..0..2....1..2..1....1..0..1

..1..1..0....1..2..1....2..0..1....2..2..2....0..2..2....1..1..2....2..2..1

..2..0..1....0..0..0....2..2..0....2..1..1....0..1..1....1..1..1....2..0..2

CROSSREFS

Sequence in context: A233602 A233603 A233595 * A064982 A204317 A216945

Adjacent sequences:  A233591 A233592 A233593 * A233595 A233596 A233597

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 14 2013

STATUS

approved

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Last modified January 18 21:54 EST 2019. Contains 319282 sequences. (Running on oeis4.)