Number of nX3 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements.
A283095
Number of nX3 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors, with the exception of exactly two elements.
Terms
- a(0) =0a(1) =6a(2) =72a(3) =600a(4) =4607a(5) =31669a(6) =208949a(7) =1324269a(8) =8152245a(9) =49070731a(10) =289979290a(11) =1687730558a(12) =9698213032a(13) =55123714128a(14) =310376329220
External references
- oeis: A283095