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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
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OFFSET
1,1
COMMENTS
Column 4 of
A202134
LINKS
Table of n, a(n) for n=1..5.
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
Adjacent sequences:
A202130
A202131
A202132
*
A202134
A202135
A202136
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.)