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A172561
Number of 3*n X n 0..1 arrays with row sums 5 and column sums 15
1
0, 0, 0, 0, 1, 137225088000, 452489654840076972518400, 5638345005774311804302107347272704000, 289360589460480315988823313632867603848637000544000
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OFFSET
1,6
LINKS
R. H. Hardin,
Table of n, a(n) for n=1..14
CROSSREFS
Sequence in context:
A034652
A015402
A108389
*
A172600
A172704
A172793
Adjacent sequences:
A172558
A172559
A172560
*
A172562
A172563
A172564
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 06 2010
STATUS
approved
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Last modified July 16 13:29 EDT 2024. Contains 374349 sequences. (Running on oeis4.)