A172652 Number of 2*n X n 0..2 arrays with row sums 7 and column sums 14.

0, 0, 0, 2520, 755265546000, 1563133410663239958840, 17949532724881770551236183389177, 1021718304724615708073668620385984867252800

Offset

1,4

Links

R. H. Hardin, Table of n, a(n) for n=1..13

Crossrefs

Sequence in context: A172553 A172580 A172684 * A217862 A144971 A217588

Adjacent sequences: A172649 A172650 A172651 * A172653 A172654 A172655

Keyword

nonn

Author

R. H. Hardin, Feb 06 2010

Status

approved