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A172663
Number of 3*n X n 0..2 arrays with row sums 6 and column sums 18
1
0, 0, 1, 6152037276, 2630024635942177123650, 16157198427400511406055803977773761, 1126052188643363954802820836947166068046894450600
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OFFSET
1,4
LINKS
R. H. Hardin,
Table of n, a(n) for n=1..11
CROSSREFS
Sequence in context:
A046894
A145552
A290502
*
A210727
A004675
A011524
Adjacent sequences:
A172660
A172661
A172662
*
A172664
A172665
A172666
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 06 2010
STATUS
approved
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Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)