Number of n X 2 0..3 arrays with values 0..3 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors.
A200795
Number of n X 2 0..3 arrays with values 0..3 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors.
Terms
- a(0) =2a(1) =15a(2) =178a(3) =2614a(4) =40148a(5) =622645a(6) =9676364a(7) =150442627a(8) =2339207390a(9) =36372631268a(10) =565564863676
External references
- oeis: A200795