The number of n X n replace matrices: binary matrices A where the i-th row contains exactly i zeros and A[i,j] >= A[j,i] for all i < j.
A332637
The number of n X n replace matrices: binary matrices A where the i-th row contains exactly i zeros and A[i,j] >= A[j,i] for all i < j.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =68a(4) =1270a(5) =53200a(6) =5068960a(7) =1109820882a(8) =562711290616
External references
- oeis: A332637