Number of (n+1)X2 0..3 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum.
A185568
Number of (n+1)X2 0..3 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum.
Terms
- a(0) =0a(1) =704a(2) =1936a(3) =34816a(4) =172992a(5) =2053216a(6) =12950528a(7) =131772320a(8) =929033280a(9) =8815545344a(10) =65895014896a(11) =602776037920
External references
- oeis: A185568