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A172614
Number of 9*n X n 0..1 arrays with row sums 2 and column sums 18
1
0, 1, 227873431500, 30862498453931119524941700, 303467065300162961503136931771371140440000, 98744132720453916340813668495424059077053759331765698612500
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OFFSET
1,3
LINKS
R. H. Hardin,
Table of n, a(n) for n=1..10
CROSSREFS
Sequence in context:
A108496
A185430
A221263
*
A112431
A202725
A132908
Adjacent sequences:
A172611
A172612
A172613
*
A172615
A172616
A172617
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 06 2010
STATUS
approved
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Last modified June 10 01:53 EDT 2024. Contains 373251 sequences. (Running on oeis4.)