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A198653 Number of nX6 0..6 arrays with values 0..6 introduced in row major order and each element equal to at least one horizontal or vertical neighbor 0
6, 3521, 3050721, 5870175231, 15022218265442 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A198654

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions with all values 0 to 6 for n=3

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

..3..3..4..5..4..6....0..1..3..3..4..5....3..3..4..1..5..5....3..4..1..2..5..5

..6..6..4..5..4..6....3..3..6..6..4..5....2..2..4..6..6..6....3..4..4..6..6..6

CROSSREFS

Sequence in context: A283885 A198706 A198625 * A198660 A048542 A140173

Adjacent sequences: A198650 A198651 A198652 * A198654 A198655 A198656

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 28 2011

STATUS

approved

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Last modified February 8 14:48 EST 2023. Contains 360146 sequences. (Running on oeis4.)