A172735 Number of n X n 0..3 arrays with row sums 9 and column sums 9

0, 0, 1, 2008, 45934340, 3875209794400, 1031515670404216935, 771548465309275841582080, 1469748355306450464225368161315, 6564303619112746449775184462681016600

Offset

1,4

Links

R. H. Hardin, Table of n, a(n) for n=1..15

Crossrefs

Sequence in context: A258553 A258560 A281987 * A172780 A172807 A153822

Adjacent sequences: A172732 A172733 A172734 * A172736 A172737 A172738

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved