Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and an odd number of ones in each row.
A162054
Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and an odd number of ones in each row.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =8a(4) =29a(5) =201a(6) =2045a(7) =42099a(8) =1463799a(9) =96669398a(10) =11401254845
External references
- oeis: A162054