1/8 the number of (n+1)X9 0..3 arrays with all 2X2 subblock sums the same.
A184028
1/8 the number of (n+1)X9 0..3 arrays with all 2X2 subblock sums the same.
Terms
- a(0) =89044a(1) =117321a(2) =165929a(3) =271176a(4) =477919a(5) =950430a(6) =1994441a(7) =4552710
External references
- oeis: A184028