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A172576
Number of 4*n X n 0..1 arrays with row sums 5 and column sums 20
1
0, 0, 0, 0, 1, 3246670537110000, 352231966693098849132080247442500, 203269774721184658406475682049947158681837795504000, 746770363520310669802381642326970209622854085785862010798716821780000
OFFSET
1,6
LINKS
CROSSREFS
Sequence in context: A233844 A104282 A234067 * A037249 A008913 A335395
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
STATUS
approved