Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,0 for x=0,1,2,3,4.
A197533
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,0 for x=0,1,2,3,4.
Terms
- a(0) =5a(1) =33a(2) =216a(3) =1419a(4) =9373a(5) =62586a(6) =423085a(7) =2879723a(8) =19671764a(9) =134643523a(10) =922592723a(11) =6325665762a(12) =43386843099a(13) =297644913045
External references
- oeis: A197533