A172911 Number of 2*n X n 0..6 arrays with row sums 7 and column sums 14.

0, 146, 11455470, 25512834226600, 950699986010003704500, 388015827514187438302900020000, 1252647814330243252910452100864057894337, 24848247984277498423162949237290870891470475838400

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n=1..12

Crossrefs

Sequence in context: A166219 A097728 A172877 * A172933 A145212 A195239

Adjacent sequences: A172908 A172909 A172910 * A172912 A172913 A172914

Keyword

nonn

Author

R. H. Hardin, Feb 06 2010

Status

approved