Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,0,1 for x=0,1,2,3,4.
A197086
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,0,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =10a(2) =96a(3) =631a(4) =5101a(5) =37952a(6) =289564a(7) =2200339a(8) =16713718a(9) =127074214a(10) =965583306a(11) =7338942170a(12) =55775566553a(13) =423896532807
External references
- oeis: A197086