Number of (n+1)X(n+1) 0..2 arrays with each element of every 2X2 subblock being the sum mod 3 of two others.
A183828
Number of (n+1)X(n+1) 0..2 arrays with each element of every 2X2 subblock being the sum mod 3 of two others.
Terms
- a(0) =31a(1) =823a(2) =53589a(3) =9622587a(4) =4200572147
External references
- oeis: A183828