T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum minus the lower median of every 2X2 subblock equal.
A237175
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum minus the lower median of every 2X2 subblock equal.
Terms
- a(0) =256a(1) =1696a(2) =1696a(3) =11242a(4) =25384a(5) =11242a(6) =79688a(7) =370670a(8) =370670a(9) =79688a(10) =571176a(11) =5876404a(12) =11560002a(13) =5876404a(14) =571176a(15) =4149488a(16) =93633848a(17) =398902424a(18) =398902424a(19) =93633848a(20) =4149488a(21) =30302376a(22) =1522516754a(23) =13627618416a(24) =30813347734
External references
- oeis: A237175