75185550domain: NAppears in sequencesNumber of n X n binary arrays with all 1s connected, and all corners 1.at n=5A163046Number of n X 6 binary arrays with all 1s connected, and all corners 1.at n=5A163050Array 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=60A389687