Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,3,2,4,0 for x=0,1,2,3,4.
A196920
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,3,2,4,0 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =9a(2) =58a(3) =335a(4) =2659a(5) =18354a(6) =123261a(7) =841565a(8) =5796373a(9) =40206133a(10) =280010220a(11) =1953475131a(12) =13643051451a(13) =95356664458a(14) =666849653893
External references
- oeis: A196920