Number of (n+1)X(3+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both.
A234755
Number of (n+1)X(3+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both.
Terms
- a(0) =8968a(1) =646036a(2) =41065150a(3) =2683721676a(4) =174451064914
External references
- oeis: A234755