222190

Appears in sequences

• Number of symmetric 5 X 5 matrices of nonnegative integers with every row and column adding to n.at n=6A053494
• T(n,k) = Number of (n*k) X k binary arrays with rows in nonincreasing order, n ones in every column and no more than 2 ones in any row.at n=50A188403
• 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=5A188407