A172697 Number of 5*n X 5 0..2 arrays with row sums 2 and column sums 2*n

6210, 1328792850, 467046072593100, 203571289613781911250, 100139724386322263262579960, 53234949493963470885785898137100, 29871310888030132154949642916374456000

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n=1..19

Crossrefs

Sequence in context: A235277 A246889 A172629 * A172731 A330364 A230733

Adjacent sequences: A172694 A172695 A172696 * A172698 A172699 A172700

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved