Number of nX3 0..3 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
A203841
Number of nX3 0..3 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
Terms
- a(0) =1a(1) =16a(2) =262a(3) =2706a(4) =28744a(5) =362648a(6) =4683983a(7) =58985474a(8) =742707090a(9) =9444433515a(10) =120525293455
External references
- oeis: A203841