Number of (n+1)X(3+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or vertically.

A232427

Number of (n+1)X(3+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or vertically.

Terms

    a(0) =64a(1) =1632a(2) =33708a(3) =650696a(4) =14465384a(5) =313201804a(6) =6514702216a(7) =139122934752

External references