Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,0,0,1 for x=0,1,2,3,4.
A197094
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,0,0,1 for x=0,1,2,3,4.
Terms
- a(0) =3a(1) =55a(2) =384a(3) =3477a(4) =30071a(5) =259856a(6) =2253537a(7) =19514155a(8) =169056920a(9) =1464412705a(10) =12685404677a(11) =109886670038a(12) =951885707773
External references
- oeis: A197094