A172899 Number of n X n 0..6 arrays with row sums 7 and column sums 7

0, 6, 606, 371272, 966989100, 8540999195040, 215298243454580553, 13576914921321831895872, 1932115872363940267546247712, 571313477490432486300617373331200

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n=1..20

Crossrefs

Sequence in context: A134367 A255886 A300389 * A222831 A206458 A265116

Adjacent sequences: A172896 A172897 A172898 * A172900 A172901 A172902

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved