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A198668
Number of nX7 0..4 arrays with values 0..4 introduced in row major order and each element equal to one or two horizontal and vertical neighbors
0
11, 21243, 40546053, 119026441960, 319298496941179
OFFSET
1,1
COMMENTS
Column 7 of A198669
EXAMPLE
Some solutions with all values 0 to 4 for n=3
..0..0..1..1..0..0..2....0..0..1..1..2..3..0....0..0..1..2..2..3..3
..0..1..3..3..4..4..2....0..1..1..0..2..3..0....0..1..1..4..4..4..1
..0..1..1..0..0..0..2....0..1..0..0..4..4..0....0..0..0..0..1..1..1
CROSSREFS
Sequence in context: A232066 A330301 A264917 * A346206 A198707 A198626
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 28 2011
STATUS
approved