Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,3,0,1,2 for x=0,1,2,3,4.
A198007
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,3,0,1,2 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =7a(2) =51a(3) =1165a(4) =80519a(5) =12594359a(6) =5423217685
External references
- oeis: A198007