Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,1,1 for x=0,1,2,3,4.
A197886
Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =18a(2) =77a(3) =835a(4) =2730a(5) =17890a(6) =92843a(7) =567991a(8) =3000116a(9) =17111462a(10) =94740977a(11) =537643352a(12) =2995145891a(13) =16728999681a(14) =93489922434a(15) =524952952537
External references
- oeis: A197886