20172122

Appears in sequences

• Number of n X 6 binary arrays with all 1s connected and a path of 1s from top row to lower right corner.at n=4A163015
• Number of n X 5 binary arrays with all 1's connected and a path of 1's from left column to lower right corner.at n=5A163022
• Array read by antidiagonals: T(m,n) is the number of m X n binary arrays with all 1's connected and a path of 1's from top row to lower right corner.at n=49A391489