Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4.
A197427
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =5a(1) =71a(2) =448a(3) =5197a(4) =43909a(5) =410456a(6) =4017895a(7) =37566429a(8) =351740354a(9) =3301443327a(10) =31135760775a(11) =294213106126
External references
- oeis: A197427