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A172667
Number of 3*n X n 0..2 arrays with row sums 5 and column sums 15
1
0, 0, 1680, 1252634243520, 15966070888767791932191, 2333327772435239191435579651896000, 2927463235524353975393755326111103021707295200
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OFFSET
1,3
LINKS
R. H. Hardin,
Table of n, a(n) for n=1..14
CROSSREFS
Sequence in context:
A172568
A172673
A172768
*
A221204
A145292
A228183
Adjacent sequences:
A172664
A172665
A172666
*
A172668
A172669
A172670
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 06 2010
STATUS
approved
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Last modified April 17 21:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)
