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A201494
Number of nX6 zero-sum -2..2 arrays with rows and columns lexicographically nondecreasing
0
18, 36487, 168357815, 732383803600, 2571822263246639, 7383126698273869479
OFFSET
1,1
COMMENTS
Column 6 of A201496
EXAMPLE
Some solutions for n=2
.-2.-1.-1..0..0..2...-2.-1.-1..1..1..1...-2.-1.-1..0..1..1...-2..0..0..0..1..2
.-1.-1.-1..2..2..1....1..0..0.-2..1..1....2.-2..2..2.-2..0...-2..0..2..2.-1.-2
CROSSREFS
Sequence in context: A296653 A255406 A123401 * A079303 A159445 A146548
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 02 2011
STATUS
approved