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A197678 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,1 for x=0,1,2,3,4 1
25, 361, 8930, 153715, 2871646, 51167876, 924904506, 16683567785, 302284521370, 5474405589906, 99183749443489, 1797437230322126, 32577752904902204, 590500270236515512, 10703710573822288345, 194025178417426634201 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

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

Column 7 of A197679

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..149

EXAMPLE

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

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

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

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

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

CROSSREFS

Sequence in context: A306083 A077512 A261972 * A197536 A045622 A130052

Adjacent sequences:  A197675 A197676 A197677 * A197679 A197680 A197681

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 17 2011

STATUS

approved

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Last modified August 15 01:40 EDT 2020. Contains 336484 sequences. (Running on oeis4.)