Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.
A197669
Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.
Terms
- a(0) =9a(1) =217a(2) =2765a(3) =44323a(4) =709083a(5) =11277331a(6) =178113620a(7) =2824369075a(8) =44803424135a(9) =710299706355
External references
- oeis: A197669