Number of n X 7 0..1 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
A202978
Number of n X 7 0..1 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =69a(2) =3507a(3) =122468a(4) =4590696a(5) =170937904a(6) =6330398606a(7) =235362503738
External references
- oeis: A202978