Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,2,1,2 for x=0,1,2,3,4.
A197339
Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,2,1,2 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =18a(2) =103a(3) =681a(4) =4005a(5) =25336a(6) =159818a(7) =998934a(8) =6247167a(9) =39159520a(10) =245281909a(11) =1536123953a(12) =9621537368a(13) =60265981592a(14) =377473012241
External references
- oeis: A197339