A197205 - OEIS

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A197205

Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,1,0,3 for x=0,1,2,3,4

6, 496, 22210, 977946, 44049565, 1989885480, 89745742142, 4040991108566, 182261563872132, 8218346291797149, 370479419808054291, 16702609526861781522, 753042675005485120165, 33950326193658865945236

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

OFFSET

1,1

COMMENTS

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

Column 6 of A197207

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..186

EXAMPLE

Some solutions for n=4

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

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