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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
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OFFSET
1,1
COMMENTS
Column 6 of
A201496
LINKS
Table of n, a(n) for n=1..6.
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
Adjacent sequences:
A201491
A201492
A201493
*
A201495
A201496
A201497
KEYWORD
nonn
AUTHOR
R. H. Hardin
Dec 02 2011
STATUS
approved
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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)