Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,4,1,2 for x=0,1,2,3,4.
A196139
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,4,1,2 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =5a(2) =7a(3) =83a(4) =481a(5) =2599a(6) =24615a(7) =330889a(8) =4431097a(9) =82611569a(10) =1973678929a(11) =55783136985
External references
- oeis: A196139