The OEIS is supported by the many generous donors to the OEIS Foundation.

Number of symmetric n X n binary matrices with rows, considered as binary numbers, in strictly increasing order.

0

`%I #3 Mar 31 2012 12:35:07
`

`%S 3,9,48,438,6774,178263,8064528,635233629,88262479353,21895746114393,
`

`%T 9802094635734609,7991530444822867188,11958178763325581795193,
`

`%U 33058393812927903895526529,169791780269023089222297799203,1628050027945868401705569575523453
`

`%N Number of symmetric n X n binary matrices with rows, considered as binary numbers, in strictly increasing order.
`

`%K nonn
`

`%O 2,1
`

`%A _R. H. Hardin_, Jul 31 2008
`