Number of (n+1)X(2+1) 0..3 arrays with every 2X2 subblock summing to 5 6 or 7.
A251375
Number of (n+1)X(2+1) 0..3 arrays with every 2X2 subblock summing to 5 6 or 7.
Terms
- a(0) =1048a(1) =19644a(2) =385704a(3) =7712232a(4) =155378004a(5) =3140670344a(6) =63575161960
External references
- oeis: A251375