Half the number of (n+1)X4 0..2 arrays with no 2X2 subblock having sum 4.
A183786
Half the number of (n+1)X4 0..2 arrays with no 2X2 subblock having sum 4.
Terms
- a(0) =1500a(1) =57966a(2) =2214457a(3) =84888699a(4) =3250564943a(5) =124516635830
External references
- oeis: A183786