A197400 - OEIS

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A197400

Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,1,1,1 for x=0,1,2,3,4

1, 249, 3417, 78101, 1353761, 26456233, 534127371, 10702459629, 210165095895, 4163535286913, 82989760611503, 1647146588097919, 32676624824656185, 648733177064446543, 12886037922010071897, 255825582321287654665

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

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

Column 7 of A197401

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..96

EXAMPLE

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

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

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