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A201801 Number of zero-sum nX6 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors 0
1751, 235827, 7099021, 472565771, 27941324053 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A201803
LINKS
Table of n, a(n) for n=1..5.
EXAMPLE
Some solutions for n=2
.-1.-1..2..2.-1..2...-1..0.-1..2.-2..1...-2.-2.-2..0..0..2....0.-2..1..1..2..2
.-2.-2..2..2.-1.-2....2..0.-1..2.-2..0....2.-1.-1..1..1..2...-2.-2.-2..1..2.-1
CROSSREFS
Sequence in context: A038010 A362875 A324710 * A172833 A172882 A251892
Adjacent sequences: A201798 A201799 A201800 * A201802 A201803 A201804
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 05 2011
STATUS
approved

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Last modified December 7 23:30 EST 2023. Contains 367662 sequences. (Running on oeis4.)