A265452 - OEIS

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A265452

Number of nX2 0..n+2-2 arrays with each element differing from its horizontal and vertical neighbors by one or two.

2, 18, 250, 3358, 42282, 502154, 5710302, 62782966, 672520310, 7056533978, 72819524370, 741279145398, 7460955607878, 74381377429158, 735539563061590, 7222916531541006, 70499118369836786, 684459097597365542

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

OFFSET

1,1

COMMENTS

Column 2 of A265458.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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