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, vertically, diagonally or antidiagonally.
A232672
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, vertically, diagonally or antidiagonally.
Terms
- a(0) =1568a(1) =63632a(2) =3684840a(3) =223396744a(4) =12890094328a(5) =754650484792
External references
- oeis: A232672