Number of (7*n)Xn binary arrays with rows in nonincreasing order, 7 ones in every column and no more than 3 ones in any row.
A188422
Number of (7*n)Xn binary arrays with rows in nonincreasing order, 7 ones in every column and no more than 3 ones in any row.
Terms
- a(0) =1a(1) =8a(2) =410a(3) =101829a(4) =87171345a(5) =197263686098
External references
- oeis: A188422