Number of (n+1)X(2+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically, diagonally or antidiagonally.
A232671
Number of (n+1)X(2+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) =212a(1) =3138a(2) =63632a(3) =1323984a(4) =26350948a(5) =532378308a(6) =10773984656a(7) =217145249724
External references
- oeis: A232671