Number of (n+1)X(7+1) 0..3 arrays with every element next to itself plus and minus one within the range 0..3 horizontally, vertically or antidiagonally, with no adjacent elements equal.
A232390
Number of (n+1)X(7+1) 0..3 arrays with every element next to itself plus and minus one within the range 0..3 horizontally, vertically or antidiagonally, with no adjacent elements equal.
Terms
- a(0) =6224a(1) =51240a(2) =589172a(3) =7492900a(4) =109430578a(5) =1635435360a(6) =24233926664a(7) =367539805270
External references
- oeis: A232390