A172625 Number of n X n 0..2 arrays with row sums 5 and column sums 5

0, 0, 6, 1344, 1084851, 2030271480, 7873709050620, 57952896096182976, 754663198156942150944, 16426290801521822874931152, 570338548776486677507756325120, 30378597441131419114905188023754880

Offset

1,3

Links

R. H. Hardin, Table of n, a(n) for n=1..35

Crossrefs

Sequence in context: A076781 A055306 A203331 * A066037 A279924 A307871

Adjacent sequences: A172622 A172623 A172624 * A172626 A172627 A172628

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved