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A172573
Number of 3*n X 2*n 0..1 arrays with row sums 4 and column sums 6
1
0, 1, 90291600, 729833528645228700, 91880966659006902855367890000, 113498154592670786286712327731832894830000, 972197559210817377231037831422299544032898553608000000
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OFFSET
1,3
LINKS
R. H. Hardin,
Table of n, a(n) for n=1..17
CROSSREFS
Sequence in context:
A253269
A227654
A069318
*
A015367
A323536
A216009
Adjacent sequences:
A172570
A172571
A172572
*
A172574
A172575
A172576
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 06 2010
STATUS
approved
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Last modified June 11 15:53 EDT 2024. Contains 373315 sequences. (Running on oeis4.)