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A197316 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,1,0,0 for x=0,1,2,3,4 1
2, 27, 249, 2724, 24903, 189212, 2241018, 20425821, 208960627, 1984221109, 20223402011, 195734767851, 1964217477394, 19163046359315, 191509608470344, 1875354477655910, 18682249962661264, 183413216662448071 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

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

Column 7 of A197317

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..109

EXAMPLE

Some solutions containing all values 0 to 4 for n=4

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

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

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

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

CROSSREFS

Sequence in context: A058406 A216087 A049070 * A175529 A267547 A302174

Adjacent sequences:  A197313 A197314 A197315 * A197317 A197318 A197319

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 13 2011

STATUS

approved

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Last modified October 19 23:40 EDT 2019. Contains 328244 sequences. (Running on oeis4.)