Number of 2nX10 0..3 arrays with values 0..3 introduced in row major order and each element equal to exactly two horizontal and vertical neighbors.
A198601
Number of 2nX10 0..3 arrays with values 0..3 introduced in row major order and each element equal to exactly two horizontal and vertical neighbors.
Terms
- a(0) =14a(1) =1985a(2) =309770a(3) =49726877a(4) =8055413256
External references
- oeis: A198601