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A197089 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,0,1 for x=0,1,2,3,4 1
1, 161, 7537, 289564, 12635748, 522569033, 21989908007, 923559415946, 38737498552503, 1625808615727565, 68233833241429320, 2863571252883915815, 120178359677506216775, 5043597906899270802555, 211668526758336137032851 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Every 0 is next to 0 4's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 1's

Column 7 of A197090

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..189

EXAMPLE

Some solutions for n=4

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

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

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

..0..0..3..0..0..0..0....0..0..0..0..0..3..0....0..0..0..0..3..0..0

CROSSREFS

Sequence in context: A196640 A232072 A278205 * A278890 A135699 A092312

Adjacent sequences:  A197086 A197087 A197088 * A197090 A197091 A197092

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 10 2011

STATUS

approved

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Last modified May 28 16:37 EDT 2022. Contains 354119 sequences. (Running on oeis4.)