A172908 Number of 2*n X n 0..6 arrays with row sums 6 and column sums 12

1, 231, 4645936, 2503134855620, 18123941520898218600, 1125711921752126203903372141, 436763455430178705879474096982721048, 835840537229783152562450810757651648205244120

Offset

1,2

Links

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

Crossrefs

Sequence in context: A068750 A225997 A172898 * A359011 A172935 A319306

Adjacent sequences: A172905 A172906 A172907 * A172909 A172910 A172911

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved