Number of (n+1)X4 0..3 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum.
A185570
Number of (n+1)X4 0..3 arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum.
Terms
- a(0) =1936a(1) =319448a(2) =13565936a(3) =886180500a(4) =48714917964
External references
- oeis: A185570