Number of (6*n)Xn binary arrays with rows in nonincreasing order, 6 ones in every column and no more than 3 ones in any row.
A188421
Number of (6*n)Xn binary arrays with rows in nonincreasing order, 6 ones in every column and no more than 3 ones in any row.
Terms
- a(0) =1a(1) =7a(2) =256a(3) =36659a(4) =15083334a(5) =14100262412
External references
- oeis: A188421