Number of (n+2)X3 0..3 matrices with each 3X3 subblock having the same population.
A224803
Number of (n+2)X3 0..3 matrices with each 3X3 subblock having the same population.
Terms
- a(0) =262144a(1) =1048576a(2) =4194304a(3) =16777216a(4) =78118912a(5) =363741184a(6) =1693669888a(7) =8752522240a(8) =45231155200a(9) =233744896000
External references
- oeis: A224803