Number of n X n binary arrays with all 1s connected, a path of 1s from top row to bottom row, and no 1 having more than two 1s adjacent.

A163713

Number of n X n binary arrays with all 1s connected, a path of 1s from top row to bottom row, and no 1 having more than two 1s adjacent.

Terms

    a(0) =1a(1) =7a(2) =48a(3) =531a(4) =9012a(5) =224493a(6) =8379953a(7) =488937978a(8) =46177107232

External references