Number of (n+1)X(2+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions but not both.
A234763
Number of (n+1)X(2+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions but not both.
Terms
- a(0) =240a(1) =1624a(2) =9404a(3) =64180a(4) =398696a(5) =2678704a(6) =17095452a(7) =113639852a(8) =734839992a(9) =4854653704a(10) =31602975908a(11) =208063060500
External references
- oeis: A234763