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A198707 Number of nX7 0..4 arrays with values 0..4 introduced in row major order and each element equal to at least one horizontal or vertical neighbor 0
11, 27422, 77622801, 316137386807, 1259339424693241 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A198708

LINKS

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

EXAMPLE

Some solutions with all values 0 to 4 for n=3

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

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

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

CROSSREFS

Sequence in context: A264917 A198668 A346206 * A198626 A343119 A295176

Adjacent sequences:  A198704 A198705 A198706 * A198708 A198709 A198710

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 29 2011

STATUS

approved

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Last modified August 10 09:58 EDT 2022. Contains 356039 sequences. (Running on oeis4.)