A172676 Number of 3*n X 9 0..2 arrays with row sums 6 and column sums 2*n.

352128, 96307175477520, 78459796857685317493440, 97830370630931874758353953631440, 154847134246966332451923962693083298516928

Offset

1,1

Links

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

Crossrefs

Sequence in context: A251246 A237098 A172664 * A172773 A172840 A172886

Adjacent sequences: A172673 A172674 A172675 * A172677 A172678 A172679

Keyword

nonn

Author

R. H. Hardin, Feb 06 2010

Status

approved