Number of n X n binary arrays with rows, considered as binary numbers, in strictly increasing order, and columns, considered as binary numbers, in nondecreasing order, and no more than 6 ones in any row or column.
A151806
Number of n X n binary arrays with rows, considered as binary numbers, in strictly increasing order, and columns, considered as binary numbers, in nondecreasing order, and no more than 6 ones in any row or column.
Terms
- a(0) =2a(1) =4a(2) =21a(3) =330a(4) =14610a(5) =1820715a(6) =608470460a(7) =472778135611
External references
- oeis: A151806