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A198624 Number of nX5 0..5 arrays with values 0..5 introduced in row major order and each element equal to at least one horizontal or vertical neighbor 0
3, 488, 98330, 38208073, 18048413395, 9630271257812, 5291151764465150, 2951559987278650909, 1652290176778975311860 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A198627

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A241977 A045616 A198705 * A198652 A198659 A142801

Adjacent sequences:  A198621 A198622 A198623 * A198625 A198626 A198627

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 27 2011

STATUS

approved

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Last modified April 3 16:46 EDT 2020. Contains 333197 sequences. (Running on oeis4.)