A218515 - OEIS

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A218515

Number of n X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 n X n array

0

4, 36, 4634, 1608968, 3856183182, 40522780697742, 2345237392530015812, 681081741849413830473468, 1012037226170162671485394009190

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Diagonal of A218522

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A179870 A001152 A349848 * A296136 A061024 A297105

Adjacent sequences: A218512 A218513 A218514 * A218516 A218517 A218518

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 31 2012

STATUS

approved