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A229513 Number of n X n 0..2 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(n+1) 0..2 array without adjacent equal elements in the latter 0
3, 33, 775, 34151, 3336437, 701321971, 329002027139, 336641338602285, 765068159631612145 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A229521

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A003715 A247030 A009690 * A210833 A174488 A289695

Adjacent sequences:  A229510 A229511 A229512 * A229514 A229515 A229516

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 25 2013

STATUS

approved

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Last modified October 25 19:28 EDT 2020. Contains 338012 sequences. (Running on oeis4.)