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A218644 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..3 n X n array 0
4, 16, 610, 82188, 45453172, 99181510254, 817394844786996, 26269231937922520406 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A218651

LINKS

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

EXAMPLE

Some solutions for n=3

..1..1..3....0..0..1....2..2..3....0..0..3....3..1..1....1..1..1....3..2..2

..1..1..3....0..0..2....1..1..2....0..2..0....1..1..0....1..1..2....3..2..2

..1..1..3....0..3..3....1..1..2....2..0..0....1..0..0....3..2..2....3..2..2

CROSSREFS

Sequence in context: A262546 A013006 A013001 * A013179 A144177 A300315

Adjacent sequences:  A218641 A218642 A218643 * A218645 A218646 A218647

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 03 2012

STATUS

approved

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Last modified December 9 08:41 EST 2021. Contains 349627 sequences. (Running on oeis4.)