1/6 the number of nX5 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.
A185538
1/6 the number of nX5 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors.
Terms
- a(0) =11a(1) =12105a(2) =4403225a(3) =2241330570a(4) =994633804270
External references
- oeis: A185538