22393101

Appears in sequences

• Number of (6*n) X 6 binary arrays with rows in nonincreasing order, n ones in every column and no more than 2 ones in any row.at n=6A188400
• 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.at n=6A188407
• Number of n X n nonnegative integer symmetric matrices with all row and column sums equal to n.at n=6A333739