Number of (n+1)X(1+1) 0..3 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock equal.

A237293

Number of (n+1)X(1+1) 0..3 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock equal.

Terms

    a(0) =256a(1) =1128a(2) =5360a(3) =27376a(4) =145488a(5) =802992a(6) =4552384a(7) =26458368a(8) =156639808a(9) =942349824a(10) =5736317696a(11) =35260388992a(12) =218279005440

External references