A172827 Number of 2*n X n 0..4 arrays with row sums 9 and column sums 18

0, 0, 28681, 2449665403360, 4267335124853033521800, 106107338700855492388229350341800, 27866376170914402863794530315047399586447050

Offset

1,3

Links

R. H. Hardin, Table of n, a(n) for n=1..10

Crossrefs

Sequence in context: A179251 A122650 A172755 * A145686 A224576 A234835

Adjacent sequences: A172824 A172825 A172826 * A172828 A172829 A172830

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved