Number of n X n binary arrays with all 1s connected, and all corners 1.

A163046

Number of n X n binary arrays with all 1s connected, and all corners 1.

Terms

    a(0) =1a(1) =1a(2) =12a(3) =540a(4) =101950a(5) =75185550a(6) =210133770712

External references