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A172673
Number of 3*n X 9 0..2 arrays with row sums 3 and column sums n
1
1680, 747558000, 655551508577280, 853588467101915622000, 1392491976667637592480814080, 2631822682451717147804985743769600, 5516710929099784554483904755922151424000
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OFFSET
1,1
LINKS
R. H. Hardin,
Table of n, a(n) for n=1..24
CROSSREFS
Sequence in context:
A156422
A172562
A172568
*
A172768
A172667
A221204
Adjacent sequences:
A172670
A172671
A172672
*
A172674
A172675
A172676
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 06 2010
STATUS
approved
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Last modified May 9 23:14 EDT 2024. Contains 372354 sequences. (Running on oeis4.)