Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,0 for x=0,1,2,3,4.
A197746
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,0 for x=0,1,2,3,4.
Terms
- a(0) =3a(1) =31a(2) =212a(3) =1317a(4) =9499a(5) =64832a(6) =462515a(7) =3316363a(8) =23465652a(9) =167021811a(10) =1187571067a(11) =8438773594a(12) =60016633869a(13) =426656318067
External references
- oeis: A197746