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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

Cf. A229521.

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 April 1 13:29 EDT 2023. Contains 361695 sequences. (Running on oeis4.)