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A198659 Number of nX5 0..7 arrays with values 0..7 introduced in row major order and each element equal to at least one horizontal or vertical neighbor 0
3, 488, 98467, 40065880, 22693251873, 17510670291958 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A198661

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions with all values 0 to 7 for n=4

..0..1..1..1..2....0..1..1..2..3....0..1..1..2..2....0..1..2..3..4

..0..2..3..4..2....0..4..1..2..3....0..3..3..2..0....0..1..2..3..4

..2..2..3..4..5....4..4..5..6..7....4..5..6..6..0....5..6..7..7..4

..6..6..7..7..5....2..2..5..6..7....4..5..5..7..7....5..6..7..3..3

CROSSREFS

Sequence in context: A198705 A198624 A198652 * A142801 A057632 A245245

Adjacent sequences:  A198656 A198657 A198658 * A198660 A198661 A198662

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 28 2011

STATUS

approved

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Last modified February 21 18:05 EST 2020. Contains 332107 sequences. (Running on oeis4.)