Number of (6*n) X n binary arrays with rows in nonincreasing order, 6 ones in every column and no more than 2 ones in any row.
A188407
Number of (6*n) X n binary arrays with rows in nonincreasing order, 6 ones in every column and no more than 2 ones in any row.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =106a(4) =3616a(5) =222190a(6) =22393101a(7) =3444274966a(8) =767013376954
External references
- oeis: A188407