Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to 3 4 or 5.
A251346
Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to 3 4 or 5.
Terms
- a(0) =1899a(1) =50831a(2) =1401453a(3) =39019417a(4) =1089569635a(5) =30455338423a(6) =851555497489
External references
- oeis: A251346