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A197087 Number of nX5 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, 26, 422, 5101, 71867, 939690, 12635748, 168802858, 2257145231, 30181119596, 403549336200, 5395982997113, 72149973349274, 964732771720273, 12899599151591706, 172482705147134597, 2306295510150788549 (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 5 of A197090

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

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

..0..0..0..0..0....2..2..0..2..2....0..0..0..0..0....0..0..2..2..0

CROSSREFS

Sequence in context: A022750 A125483 A229025 * A028165 A218896 A028131

Adjacent sequences:  A197084 A197085 A197086 * A197088 A197089 A197090

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 10 2011

STATUS

approved

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Last modified January 21 16:03 EST 2022. Contains 350479 sequences. (Running on oeis4.)