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A172725
Number of n X n 0..3 arrays with row sums 10 and column sums 10
1
0, 0, 0, 282, 13130451, 2805859246095, 1995721130136414975, 4263492449580925474047120, 24875052693330062712109843270944, 364459290339560650671344361875961740353
OFFSET
1,4
LINKS
CROSSREFS
Sequence in context: A224115 A248459 A172627 * A172804 A340160 A334106
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved