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A172753
Number of 2*n X n 0..3 arrays with row sums 3 and column sums 6.
1
1, 44, 28681, 122975608, 2217051589200, 127676780106968400, 19483897303054057473600, 6882009860546294146142870400, 5078640963785630003833500263433600
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
R. H. Hardin, Table of n, a(n) for n=1..42
CROSSREFS
Sequence in context: A323315 A007105 A180842 * A268425 A183749 A119096
Adjacent sequences: A172750 A172751 A172752 * A172754 A172755 A172756
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2010
STATUS
approved

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Last modified October 28 09:12 EDT 2024. Contains 377152 sequences.
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