101950

Appears in sequences

• Number of n X n binary arrays with all 1s connected, and all corners 1.at n=4A163046
• Number of n X 5 binary arrays with all 1s connected, and all corners 1.at n=4A163049
• Triangle read by rows: T(n,k) = A(k,n-k), 1 <= k < n, 2 <= n, where A(m,n) is the number of distinct strings consisting of one X, 2*m Y's and 2*n Z's in which the X lies to the right of at least m Y's and at least n Z's.at n=24A351584
• Triangle read by rows: T(n,k) = A(k,n-k), 1 <= k < n, 2 <= n, where A(m,n) is the number of distinct strings consisting of one X, m+n-1 Y's and m+n-1 Z's in which the X lies to the right of at least m Y's and at least m Z's.at n=31A351585
• Array read by antidiagonals: T(n,m) is the number of n X m binary arrays with all 1's connected, and all corners 1.at n=40A389687