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A232383 Number of (n+1)X(n+1) 0..3 arrays with every element next to itself plus and minus one within the range 0..3 horizontally, vertically or antidiagonally, with no adjacent elements equal 0
12, 64, 1192, 28752, 1535188, 148762628, 24233926664, 7435365877376 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A232391
LINKS
EXAMPLE
Some solutions for n=4
..3..2..3..2..0....3..2..3..2..0....0..2..3..2..0....3..2..1..2..3
..1..0..1..3..1....1..0..1..3..1....1..0..1..3..1....1..3..0..1..0
..2..3..0..2..3....3..2..0..2..3....2..3..2..0..2....0..2..3..2..1
..0..2..3..0..1....0..3..1..0..2....1..0..1..3..0....1..0..1..3..0
..1..0..1..2..3....1..2..3..1..0....3..2..0..2..1....3..2..0..2..1
CROSSREFS
Sequence in context: A307061 A074359 A104062 * A003868 A304833 A363591
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 23 2013
STATUS
approved

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Last modified March 28 17:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)