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A202133 Number of zero-sum nX4 -3..3 arrays with every element equal to at least one horizontal or vertical neighbor 0
7, 1205, 135315, 22197147, 3628653641 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A202134
LINKS
EXAMPLE
Some solutions for n=2
..3..3..3.-3....3..3.-3.-3...-3.-3..0..3....1..1..1.-3....0.-1..3.-2
.-1.-1.-1.-3...-3.-3..3..3....0..0..0..3....1..1..1.-3....0.-1..3.-2
CROSSREFS
Sequence in context: A259253 A203871 A144927 * A229431 A159994 A278178
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 11 2011
STATUS
approved

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Last modified March 19 04:26 EDT 2024. Contains 370952 sequences. (Running on oeis4.)