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A218050 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..3 n X n array 0
4, 4, 256, 9792, 2585920, 1673074136, 4273380556408, 34255740119092068 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A218056

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A264517 A080509 A063439 * A107052 A000790 A068556

Adjacent sequences: A218047 A218048 A218049 * A218051 A218052 A218053

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 19 2012

STATUS

approved

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Last modified February 6 19:24 EST 2023. Contains 360111 sequences. (Running on oeis4.)