Number of n X n binary matrices, symmetric about both diagonal and antidiagonal, with rows, considered as binary numbers, in strictly increasing order.
A141050
Number of n X n binary matrices, symmetric about both diagonal and antidiagonal, with rows, considered as binary numbers, in strictly increasing order.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =10a(4) =20a(5) =98a(6) =307a(7) =2200a(8) =11253a(9) =122274a(10) =1039587a(11) =17865284a(12) =256702931a(13) =7235318376a(14) =178530216764
External references
- oeis: A141050