Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4.
A197277
Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =9a(1) =67a(2) =317a(3) =2731a(4) =16890a(5) =114205a(6) =886737a(7) =6017949a(8) =40918349a(9) =290053910a(10) =2074566978a(11) =14599100959a(12) =101671464178a(13) =714232555115
External references
- oeis: A197277