Number of n X 9 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.
A163721
Number of n X 9 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) =45a(1) =1059a(2) =14839a(3) =204461a(4) =2938865a(5) =36423717a(6) =402913422a(7) =4312636982a(8) =46177107232a(9) =493534824572
External references
- oeis: A163721