Number of nX7 0..4 arrays with values 0..4 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.
A198668
Number of nX7 0..4 arrays with values 0..4 introduced in row major order and each element equal to one or two horizontal and vertical neighbors.
Terms
- a(0) =11a(1) =21243a(2) =40546053a(3) =119026441960
External references
- oeis: A198668