Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,1,1,0 for x=0,1,2,3,4.
A197502
Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,1,1,0 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =73a(2) =1605a(3) =20411a(4) =462825a(5) =9343735a(6) =182232300a(7) =3721024215a(8) =75873083886
External references
- oeis: A197502