A162027 Number of n X n binary arrays with rows and columns, considered as binary numbers, in nondecreasing order, and all but the outermost 4 rows or columns zero

818230288201, 1256563983301548, 1591459525493191333, 1658410504426057201360, 1439614891066455972856613, 1052382631493708863536372499, 654660592773941397670404854878

Offset

8,1

Links

R. H. Hardin, Table of n, a(n) for n=8..15

Crossrefs

Sequence in context: A066543 A323533 A233800 * A172616 A233487 A297354

Adjacent sequences: A162024 A162025 A162026 * A162028 A162029 A162030

Keyword

nonn

Author

R. H. Hardin Jun 25 2009

Status

approved