24997921

Appears in sequences

• Number of {0,1} n X n matrices with no zero rows or columns.at n=5A048291
• Triangle read by rows: T(n,m) = number of n X m binary matrices with no zero rows or columns (n >= 1, 1 <= m <= n).at n=14A183109
• Square array A(h,k) = (2^h-1)*A(h,k-1) + Sum_{i=1..h-1} binomial(h,h-i)*2^i*A(i,k-1), with A(1,k) = A(h,1) = 1; read by antidiagonals.at n=40A218695
• Triangle read by rows: T(n,k) = number of n X n (0,1) matrices with at most k 1's in each row or column.at n=13A283500