Number of (n+1)X(3+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal.
A237002
Number of (n+1)X(3+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal.
Terms
- a(0) =5288a(1) =79164a(2) =1150036a(3) =22056220a(4) =411646536a(5) =8124638140a(6) =158569999540
External references
- oeis: A237002