A172680 Number of 4*n X n 0..2 arrays with row sums 3 and column sums 12.

0, 70, 358198369, 54067759732546560, 117188101836293753504038800, 2305398394297691701702591298576921200, 295799727163686817428226118102222383709995755000

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n=1..16

Crossrefs

Sequence in context: A390782 A116276 A056666 * A121338 A172776 A265728

Adjacent sequences: A172677 A172678 A172679 * A172681 A172682 A172683

Keyword

nonn

Author

R. H. Hardin, Feb 06 2010

Status

approved