Number of n X n symmetric binary arrays with rows, considered as binary numbers, in strictly increasing order, and no more than 4 ones in any row.
A162094
Number of n X n symmetric binary arrays with rows, considered as binary numbers, in strictly increasing order, and no more than 4 ones in any row.
Terms
- a(0) =2a(1) =3a(2) =9a(3) =48a(4) =397a(5) =4046a(6) =50562a(7) =725875a(8) =11870670a(9) =219522591a(10) =4530707851a(11) =103448006539
External references
- oeis: A162094