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A172873
Number of n X n 0..5 arrays with row sums n and column sums n
1
1, 3, 55, 10147, 22069251, 596500235301, 206239836523724193, 936518400276375286684035, 57040154877904164444585301792867, 47374533605081761722921471083862749119153
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A119190 A172748 A172822 * A172907 A172932 A172950
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved