Half the number of (n+1)X2 0..3 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.
A183972
Half the number of (n+1)X2 0..3 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.
Terms
- a(0) =128a(1) =992a(2) =7688a(3) =64976a(4) =549152a(5) =4780976a(6) =41623688a(7) =366310352a(8) =3223723808a(9) =28480830608a(10) =251621342408
External references
- oeis: A183972